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| Decats Thread | |
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| Tweet Topic Started: Jan 8 2008, 01:32 AM (1,590 Views) | |
| Francis | Jan 8 2008, 01:32 AM Post #1 |
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Chasing the Touge
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Have you guys just had them custom made or bought one from a manufacturer? Looking to get a decat put in soon but don't know if it's worth trying to find a decat pipe from a well known company or get one made up. |
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| Ronan | Jan 8 2008, 01:39 AM Post #2 |
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Stage 4
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I have a bolt in one but it came with the car. A made up one will do the exact same job as long as the diameter is the same as the exhaust system. Dont bother with the ones with baffles they are a waste of time. straight pipe. if you're getting one made dont butcher the cat to do so because they are expensive and will be needed fro NCT/MOTs. Unless your car is under the age limit, 93 or 94 i think. But still keep or sell the cat. A decat completely transforms the sound of the car. New sound altogether and alot raspier. And if your system is free flow enough it will pop and fart and even blow an odd flame when shifting up (They tend to run rich for a second when shifting up.) |
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| smithy | Jan 8 2008, 01:41 AM Post #3 |
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Stage 4
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Ya i bought a 5zigen one recently but ur better off just getting one made up! |
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| Francis | Jan 8 2008, 01:45 AM Post #4 |
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Chasing the Touge
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Just what I wanted to hear! I'll get a quote from my local exhaust guys tomorrow, if it's just a case of making sure it's the same diameter as the rest if the system I can't see it being a problem. Yeah, I love the sound once the cat's been removed. Do you find it pops and spits on over-run with the decat? I think over here there is a clause where by if your car is over 10 years old at the time it was imported here and SVA'd, you don't need to have a cat. I'll double check but I'm sure I heard that was the case! If so..I'm lucky as I just about made it into that bracket!
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| Ronan | Jan 8 2008, 01:54 AM Post #5 |
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Stage 4
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My exhaust is pretty large so it does pop and fart when coming down the revs between 3-4k but usually only when the car is warming up. It has a mid silencer (witch i might remove). Sraight threw systems with a roll back box can be very poppy but very loud. Also stainless steel is a must for rasp. Dont get cheap mild steal crap. This is my system: 5Zigen Cannonball ![]() ![]() ![]() On the left is the mid box and on the right is the decat |
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| Francis | Jan 8 2008, 02:00 AM Post #6 |
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Chasing the Touge
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That's a nice looking system! I'll take a peak underneath my car tomorrow. Had a brief look at the general condition of the underneath but didn't fully examine the exhaust system although it did look to be in pretty good condition! Would love to hear a soundclip of yours running.
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| Ronan | Jan 8 2008, 02:13 AM Post #7 |
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Stage 4
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I'll work on it in the near future
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| Wolftown | Jan 8 2008, 10:39 AM Post #8 |
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Stage 5
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Have a 5Zigen decat on mine for the last few months and as I have already mentioned in another thread this mod is essential for the ae111. Very cost efficient aswell as you get a good bang for your buck. The popping/flaming is an added bonus too.. |
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| LevinItUp | Jan 8 2008, 11:18 AM Post #9 |
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Stage 4
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A mate of mine has a decat for track use on his skyline (Illegal as hell here to not have a catalytic convertor on a post 88 Car)... It pops some serious flames out the back... Its awesome... De-Cat wasn't expensive either, its just two flanges and a peice of pipe. |
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| bz-r | Jan 8 2008, 07:20 PM Post #10 |
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Stage 4
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ill be gettin a 5zigen 1 soon enough i think, does it make em drink petrol ya?? |
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| Ronan | Jan 9 2008, 02:24 PM Post #11 |
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Stage 4
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But only if you have a heavy foot. |
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| Gar_DTD | Jan 9 2008, 07:45 PM Post #12 |
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Stage 2
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decat was the best thing i ever did to my 2 AE111's...my first one had the standard system with the decat and my one now has a fujitsubo manifold, decat and HKS exhaust....when i let off at the high rev's it will pop and spit flames if the exhaust is hot enough...
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| dub-levin | Jan 10 2008, 12:31 AM Post #13 |
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Stage 6
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if your just gonna cut the flang off the cat your as well off saving your cash and just hollowing out the cat. they are very easy to get hold of. google coture autos in ireland. they do them and they ship. |
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| 20vLevin | Jan 10 2008, 02:51 AM Post #14 |
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Stage 4
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I already made it, I kept it for MOT as it's easy for my to fab it back together! But then i bought another one of someone else, also i used to work in a cnc place so the SS pipe was Free
Plus i would rather a nice piece of straight pipe, i don't think i would ever hollow out one just to save a tiny bit of £'s and have a hollow box in my system! |
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| Ronan | Jan 10 2008, 03:03 PM Post #15 |
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Stage 4
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Hollowed cats DO NOT make good decats. For a decat to m work its best it has to be the same diameter as the exhaust system
I love that too Just wait till the revs drop to between 3 and 4 and then just take the slack off of the pedal with your foot and POP!
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| pergie | Jan 10 2008, 03:20 PM Post #16 |
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Stage 5
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got my de-cat the other day cant wait to get it on and the manifold aswell
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| markg-h2o | Jan 13 2008, 11:50 PM Post #17 |
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Stage 5
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hi guys was searchin da net 2day 2 get a decat and cant find any where did uz buy da 5zigen 1z uz r on about . wasnt doin a wile pile 2day so i took da cat off to c if i shoud just get an exaust place 2 make me one up but but have gone against dat idea now . a few of da boys in town have diy decats n dey say that they just keep crackin. not so nice caus den ud be losing back pressure . here is some pics of da cat , note da tiny amount of sunlight gettin through when held up to da light. i measured it asweell, 2.5" pipe and a strange length 293mm ![]() ![]() ![]() if any1 knows where i can get da proper decat , please let me no thanx |
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| 20sideways | Jan 14 2008, 12:16 AM Post #18 |
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20sideways
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5ziegn decat pipe for levin from couture auto is €150 euro!!!! |
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| markg-h2o | Jan 14 2008, 01:21 AM Post #19 |
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Stage 5
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thanks good man must take a spin down next saturday |
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| JP89 | Jan 14 2008, 10:10 PM Post #20 |
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Stage 6
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Just got my trueno bout a week ago and dont know if it has a proper cat cant figure it out cause i need da cat to pass da NCT, there is a apexi exhaust system on her and she does a small bit of poppin wen u ease off the revs no much though so i dont no. |
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| Ronan | Jan 14 2008, 10:59 PM Post #21 |
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Stage 4
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Mine is loud enough. but my baffle is gone How tick is your exhaust pipe? |
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| Mikey Jay | Jan 15 2008, 10:27 AM Post #22 |
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Stage 6
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Do you think that Couture Auto's place would do a cheaper price if we did a group buy of sorts? |
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| Ronan | Jan 15 2008, 06:18 PM Post #23 |
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Stage 4
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No i have a mid box, there is a picture of it at the start of this thread. And yes 3-3.5k is Rasp city, witch i personally love Before the decat it wasnt one bit raspy, just a deep tone. Now its raspy at certain revs and spits and splutters at times when drove hard |
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| AceSniper | Jan 16 2008, 02:33 AM Post #24 |
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Global Moderator
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haha if you like backfires get an aftermarket ecu back when I just wired my ecu I missed out resistors on the injectors... caused it todo shotgun(or louder) backfires with around a meter of blueflame tiped by some orange flame.... It made people jump, an idiots trying to race me backed off asoon as that happend Im sorting out another rear muffler the 5zigen isnt suited for me, that rasp at 3k is ass (dont know about over there) but over here almost every honda has it and its just annoying. |
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| JohnnyBZG | Jan 17 2008, 07:09 PM Post #25 |
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Needs to Try Harder
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Here's the full 5Zigen (Pro Racer/ZZ catback) from Couture Auto... as mentioned €150 for the catback (middle of pic) Will need to see if I can get some flameage from mine..haha
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| kyleseo | Jan 17 2008, 10:17 PM Post #26 |
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Stage 5
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to any of the uk boys looking to get a decat: http://www.btinternet.com/~netsurf/mr2t/images/mot-cat.gif fall into those brackets and you car is tested as non-cat. mines '95 and will be tested as a non-cat car come MOT time, it will be hard for me to fail on emissions! |
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| Peter | Jan 18 2008, 03:27 AM Post #27 |
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Stage 6
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hey fellas, I bought some flanges and got some pipe, flanges cost me $13AUD each, and the pipe I scored for free, but that sorta length will only be worth a few dollars (flanges cost about 6 pounds each) local exhaust shop quoted me $70 to make a decat pipe and install it (about 31 pounds) |
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| markg-h2o | Jan 18 2008, 05:08 AM Post #28 |
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Stage 5
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i he didnt text me today either , im in no rush any way next week will b grand , he said it was €150 n dat was grand , but i was up at andy mc taggarts house yesterday (dont no if u no him) friend from collage n he text dermot da guy with da skyline n he said heel get me a dscount so nice 1 il ask him about da manifolds when i call down friend of mine got a turbo timer harness 4 an mr2 when da place had just opened tho n it took about a week 4 dem 2 get it
by the way i would be intristed in gettin a decat made up but i already ordered da 5zigen 1 if u want some measurements of da old one i measured it at 293mm long 2.5" pipe n seems 2 b da standard type flange u can c it in da pics i put up earlier but il measure it when im puttin on da decat if u want |
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| solid-fab | Jan 18 2008, 11:29 AM Post #29 |
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Official Trader
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Thanks for the offer mate. The best bet for me to get an accurate copy is to have the original in my hand, would you be able to lend it to me for a few days? I would pay for the postage and a bit extra for your time if you like? Also are there only one type of cat for the ae111? ie. not any variation between years? Thanks |
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| markg-h2o | Jan 19 2008, 05:26 PM Post #30 |
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Stage 5
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il send it over 2 u if u want once i collect dis decat, only thing is im in ireland so postage might b a bit if u cant get any1 closer 2 send u 1 send me a message n il get it sent over |
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| solid-fab | Jan 21 2008, 09:35 PM Post #31 |
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Official Trader
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Ok mate, thanks for that. Will be in touch if nobody has one that is nearer to me! ![]() Just a quick update! My friend is lending me his cat so I can take some measurements and make a set of flanges. Once I've made one and it fits good then I'll be doing a group buy for anyone that is interested. I would need about 10 people to start this off though. Please put your name down if you are. Thanks |
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| Francis | Jan 22 2008, 12:01 PM Post #32 |
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Chasing the Touge
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That's great news. Put me down on the list mate, I'm interested.
You got PM by the way. |
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| markg-h2o | Jan 22 2008, 01:24 PM Post #33 |
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Stage 5
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hey guys got my 5zigen decat today hope its dry dis evenin so i get it fitted the joys of havin no proper garage |
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| solid-fab | Jan 22 2008, 02:51 PM Post #34 |
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Official Trader
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Mark if you could put some photos up of the decat so we can see the quality and what it looks like that would be a help. Francis - pm'd back!
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| JP89 | Jan 22 2008, 03:42 PM Post #35 |
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Stage 6
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Ya gudluk wit this cant wait to see r hear this decat n action
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| markg-h2o | Jan 22 2008, 07:33 PM Post #36 |
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Stage 5
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hi guys i got my decat 2day and got it fitted der dis evenin im sokin wet now :( stupid rain I didnt take any pics of it on yet as it was so wet here is 2 pics of it b4 it went on , its a 5zigen pipe very good quality and the welding on it seems perfect ![]() ![]() as you see u also get the bolts n gaskets with it this is a simple piece of pipe however and the handmade ones should be just as good. very simple 2 fit was done in 20 mins |
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| solid-fab | Jan 22 2008, 08:14 PM Post #37 |
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Official Trader
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Thanks for the pics mate! It looks like it is mig welded. Nice and shiny. Just a quick question - is there any type of sensor that plugs into the decat/cat? |
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| kyleseo | Jan 22 2008, 08:28 PM Post #38 |
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Stage 5
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meant to check this out the other day, been crap weather, saw a picture that showed a lambda sensor in the cat as well as before. anyone know for sure? |
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| markg-h2o | Jan 22 2008, 08:29 PM Post #39 |
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Stage 5
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no none at all , the sensor u r thinkin off is on da pipe coming up to the cat nice simple one 4 u 2 make
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| solid-fab | Jan 22 2008, 09:36 PM Post #40 |
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Official Trader
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excellent!!
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| markg-h2o | Jan 23 2008, 11:53 PM Post #41 |
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Stage 5
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heres a clip of da car with the 5zigen decat on i took this video with a camera phone so please excuse the poor quality also it was quite windy 2 night so u probley cant hear it much after about 20 seconds, And please dont give me stick about poor gearchanges as bear in mind i was driving with 1 hand and looking out for (obsticals) at the same time http://img532.imageshack.us/my.php?image=mov00585ad3.flv Please note this video was taken in a controled enviroment and didnt brake any laws,
No truenos were harmed in the making of this video I dont no what that strange noise is over it it plays grand on my phone n den like dat on the computer? |
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| AceSniper | Jan 24 2008, 03:27 AM Post #42 |
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Global Moderator
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the sensor in the cat is a overheat switch... if the cat gets blocked it gets hot an flicks a light on the dash, cant rember if it trips its own light or the engine light, the sensor just has to be grounded to the exhuast/cat and it wont trigger. the 02 is located at the end of the 2-1 pipe |
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| 20vLevin | Jan 24 2008, 12:28 PM Post #43 |
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Stage 4
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I just thought it was a normal temp sensor in the cat! i had mine tied out of the way and had no real problems! Very strange! |
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| kyleseo | Jan 24 2008, 12:48 PM Post #44 |
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Stage 5
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yeh thats is wierd, will have a check on mine when i get the chance. |
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| JohnnyBZG | Jan 24 2008, 01:16 PM Post #45 |
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Needs to Try Harder
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I can confirm also- no cat sensor, on the 5Zigen system the flange is on the 2-1 pipe |
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| solid-fab | Jan 24 2008, 08:55 PM Post #46 |
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Official Trader
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Man how fast did you go??? High speeds scare me :ph43r: |
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| markg-h2o | Jan 24 2008, 09:20 PM Post #47 |
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Stage 5
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acording to my sat nav i maxed at 197km/hr hey speed isnt scary cumin 2 a sudden stop is what do uz think of da sound in da first 15 seconds of dat video? |
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| Francis | Jan 24 2008, 09:25 PM Post #48 |
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Chasing the Touge
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Just listened to the clip! Sounds epic!!
Nice bit of redline action haha :lol: |
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| kyleseo | Jan 26 2008, 06:52 PM Post #49 |
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Stage 5
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i do have a sensor of some sort in my cat. the picture i had originally seen: ![]() mine (shit picture i know, on phone):
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| ae111 | Mar 3 2008, 10:58 PM Post #50 |
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Stage 5
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just put my de cat on an theres a lot of air escaping!!! very annoying going take it off tomorrow unless you lads have any ideas! help needed!! thanks |
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| TRUENOSAM | Mar 3 2008, 11:00 PM Post #51 |
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Stage 6
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Is it blowing?
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| AceSniper | Mar 4 2008, 02:21 AM Post #52 |
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Global Moderator
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usegaskets? do bolts up xtra tight? |
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| ae111 | Mar 4 2008, 07:49 AM Post #53 |
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Stage 5
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unfortunately i had no gaskets! but its extra tight on there! its added a lot of power such a shame to take it off!! solid fab has gaskets.......
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| Wolftown | Mar 4 2008, 09:07 AM Post #54 |
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Stage 5
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Get the gaskets, i'm sure that'll sort it. Where did you get the decat, is it a custom job? |
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| dub-levin | Mar 4 2008, 09:29 AM Post #55 |
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Stage 6
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you need the gaskets cos the exhaust has a small lip that extends out from it. you should be able to use your old one from the old cat. and stick a little firepast on it too that will help a bit |
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| ae111 | Mar 4 2008, 10:29 PM Post #56 |
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Stage 5
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ill get some pics up of the exhaust and de cat the exhaust is just a straight pipe back from the cat!! backfires like theres no tommorow!! the decat has no name on it so think its a custom job! |
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| dub-levin | Mar 4 2008, 11:14 PM Post #57 |
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where you get it from? |
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| ae111 | Mar 5 2008, 09:41 AM Post #58 |
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when i was buying the exhaust the feela had it aswel so just took it but had no gaskets! going get them off solid fab if they dont solve the problem ill just get his de-cat
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| JP89 | Mar 5 2008, 09:01 PM Post #59 |
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Stage 6
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Ya cant wait to order myne - dis fecking paypal setup is recking my head
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| TRUENOSAM | Mar 5 2008, 09:46 PM Post #60 |
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Stage 6
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I recived my decat pipe from solid fab today and it is £65 very well spent. excellent quaility
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| ae111 | Mar 6 2008, 07:51 AM Post #61 |
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Stage 5
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is it blowing? are the gaskets good? |
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| steveonagle | Mar 8 2008, 02:31 PM Post #62 |
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sdtrhftrra
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just bought a 5zigen decat myself there cant wait to put it on just gotta put her through nct first. just wonderin waht kind off power gains from 2-10hp id say is it. and whats it sound like with standard box? |
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| ae111 | Mar 8 2008, 03:22 PM Post #63 |
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Stage 5
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it sounded mean! but i dont have a standard exhaust! pulled a lot better felt better low down iv taking it back off now and can kinda feel the difference low down going get a different one where did you get your one? couture?? |
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| steveonagle | Mar 8 2008, 04:41 PM Post #64 |
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sdtrhftrra
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no got it in premier motorsport in galway they were the same price so as couture so i decided to go with them. cant wait ta get it on her. what decat ya gettin instead and why can i ask? |
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| ae111 | Mar 8 2008, 04:44 PM Post #65 |
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Stage 5
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i mite get the solid-fab one in the traders forum on here or 5-zigen from couture...the one i got isn a great fit the joints are rounded for some stupid reason! even if i fit gaskets i stil think itll blow
:angry: let me no how you get on with yours are you fitting it yourself?? |
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| genocide | Mar 9 2008, 06:03 AM Post #66 |
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Mr David Phuong
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yes, gaskets and get the exhaust glue on there too. Once ur exhaust heats up, the glue will harden and it'll be air tight. I can't think of the brand name of that glue on the top of my head but its sorta like a pink, beige colour |
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| steveonagle | Mar 10 2008, 09:24 PM Post #67 |
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sdtrhftrra
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no wont be puttin it on meself gettin a crowd called calbro to its a cunt if ya aint got a lift it hard to get the bolt off.the 5zigen is suppose ta be the shit cant wait ta find out and start makin bit more noise!!
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| JohnnyBZG | Mar 11 2008, 06:03 PM Post #68 |
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Needs to Try Harder
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My 5Zigen has kind of wonky flanges- seems to 'fart' a bit under heavy load...will leave it for now as I don't wan't to use paste and have it all gunked up...need to get the NCT re done end of summer- so don't want any hassle refitting the cat.... |
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| kyleseo | Mar 12 2008, 06:48 PM Post #69 |
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Stage 5
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^ yeh, same problem, the fire gum is coming out soon! |
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| TRUENOSAM | Mar 12 2008, 10:39 PM Post #70 |
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Stage 6
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Mines developed a bit of a rasp since the de-cat from solid-fab sound niiiiiiiiiiiiiiicccccccccccccceeeeeeeeeee ![]()
No but it was when i first fitted it but putting new gaskets on solved that issue.
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| solid-fab | Mar 13 2008, 09:54 PM Post #71 |
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Official Trader
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The problem with 2 bolt flanges are they never seal good. I always use 3 bolt flanges but with the Toyota ones there isn't that option. As long as it's bolt on tight with gaskets and maybe some gasket paste you should be fine. |
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| robcam | May 5 2008, 10:36 AM Post #72 |
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96BZR
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Wheres the best place to get one from? they all good when it comes to getting a wof? bzg with stock exhaust wont make it that much louder? (thinking about wof) Finally is it worth doing? Thanks, Im in New Zealand
mind me asking how much it cost? and did it make it louder? |
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| AceSniper | May 5 2008, 01:38 PM Post #73 |
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Global Moderator
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it shouldn't cost much at all if they keep your old cat.... ya see they are worth gold for scrap... and that should bring the cost to 10-20$ also really needa add a resonator or it may go tinny at 3k |
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| Omegah | May 6 2008, 05:48 AM Post #74 |
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ØMEGAH
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cost me like $50, and yeah i got that problem, tinny from around 2,600k - 3,000k revs |
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| Francis | May 21 2008, 09:05 AM Post #75 |
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Chasing the Touge
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Hey peeps, just about to order the solid-fab decat, but wanna know how easy it is to bolt in. And what did you do with the temp sensor? A small guide would be great, as I've never done any exhaust work before.
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