DannyBoy Posted August 27, 2011 Share Posted August 27, 2011 Right, time has come for a new exhaust, as my current one consists of a rotten OEM midpipe bodged onto a badly fitting unidentified backbox that sounds like a tin can. I've narrowed it down to two options: 1. Milltek+Berks, can get them from the UK, known quality and will definately pass trackday noise regs. 2. AAM 2.5 inch true dual with AAM HFCs, need to be shipped from the US, unknown quality (but vouched for by a forum trader), potentially too loud for trackdays. Basically it comes down to whether the higher price of the AAM will be represented as increased performance, or whether i just end up with 'true dual' bragging rights (couldn't care less). I know the milltek is a very good quality exhaust but can it come close to a true dual for performance gains on a N/A car. Would really appreciate some input here to help swing it because I just can't decide. DB Quote Link to comment Share on other sites More sharing options...
Dblock Posted August 27, 2011 Share Posted August 27, 2011 Im sure mark said OEM exhuast wil do 400bhp, but IMO I found decats give a kick, but its un proved. Quote Link to comment Share on other sites More sharing options...
CMR Posted August 27, 2011 Share Posted August 27, 2011 Cats are the most restrictive part, then the Y pipe. Changing the rest of the exhaust on an N/A Z is purely for noise/cosmetics Quote Link to comment Share on other sites More sharing options...
RisingPower Posted August 28, 2011 Share Posted August 28, 2011 I really wouldn't worry about the performance impact of either tbh. Personally I like the looks of the motordyne shockwave dual but I can't see myself changing the nismo for it. Quote Link to comment Share on other sites More sharing options...
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