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| Disappointed with my Apexi catback | |
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| Tweet Topic Started: Apr 19 2010, 09:21 PM (283 Views) | |
| Deleted User | Apr 19 2010, 09:21 PM Post #1 |
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Deleted User
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Been having a look at my Apex catback, where it bolts to the cat it's a small bore, goes into the 1st box and then it's bigger from there back. Why would Apexi make a section of it (quite small, about 10 inches) smaller than the rest? It's a good half inch smaller than the rest of the exhaust (even the stock cat) |
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| TRUENOSAM | Apr 19 2010, 09:40 PM Post #2 |
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Stage 6
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That doesnt sound right. My Apexi N1 was one size pipe (was the same bore all the way) Difficult to see but this was mine
Edited by TRUENOSAM, Apr 19 2010, 09:46 PM.
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| Deleted User | Apr 19 2010, 09:55 PM Post #3 |
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Deleted User
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Maybe mine isn't an N1. It has the front box like yours but no middle box. I'll try and get pictures tomorrow. |
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| TRUENOSAM | Apr 19 2010, 10:24 PM Post #4 |
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Stage 6
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Unless its a universal backbox with custom pipework and scilencers |
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| Deleted User | Apr 19 2010, 10:30 PM Post #5 |
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Deleted User
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It's an original Apexi and it's not been cut up, etc. Do they do any models other than the N1? |
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| TRUENOSAM | Apr 19 2010, 10:36 PM Post #6 |
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Stage 6
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N1 and N1 evolution is all I know of. Not entirley sure off the difference |
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| Deleted User | Apr 19 2010, 10:51 PM Post #7 |
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Deleted User
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Just been looking on Apexi's website, they do 2 systems for the AE111, N1 evo and a Bomber III. There is a PDF on thier website which says 54mm - 60mm for the internal diameter of both systems. http://www.apexi.co.jp/products/exhaust/pdf/exhaust.pdf So all of them are the same. It's not obvious when fitted to the car but I noticed how much narrower the flange was when I removed my de-cat. When I put on the vernier calipers on them, it became obvious. 6mm isn't a huge difference I know but I can't work out why they are designed like it? |
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| DreadAngel | Apr 20 2010, 09:21 AM Post #8 |
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Han Lue
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AE111 also had available to it other Apexi models that are now discontinued... There was the original Apexi N1 that was a straight through blaster, I think 2 other models I forgot the name though |
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| Deleted User | May 4 2010, 07:48 PM Post #9 |
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Deleted User
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I found out that the smaller diameter going to larger is part of their 'Megaphone' design.
That sounds great but I can't see how it works when you take into account the internal size of the flange on the factory cat (or aftermarket decat in my case). It's a huge bottle neck. |
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| BZR4AGE | May 4 2010, 08:48 PM Post #10 |
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JDM TODA
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can you take a picture of your system so we can understand it better. A picture is worth a thousand words |
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| Deleted User | May 4 2010, 10:05 PM Post #11 |
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Deleted User
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I think I have a blow going from my cat so will take some photos when I sort that out. Not alot to look at really, just a smaller diameter pipe leading into a box, then getting bigger after the box. It seems to me that the 54mm might actually be smaller than what Toyota use originally. |
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2:20 PM Jul 11