virus77 wrote:I got a 3" catback when I first got my car in preperation for the KAT and in the time it was NA I barely noticed the difference in low end with the 3" exhaust. Just get a big exhaust now so you dont do it twice.
butt dyno = falsehowever, with a 2.4L engine, 3" isn't all that bad. it's CERTAINLY better than stock by a long shot!
X20-A wrote:so is this exhaust system worse with sr20 than the stock exhaust system I have on my car?
no. a 3" full exhaust will still be much better on the KA than stock, and don't even bother with an SR if you're not going with an aftermarket exhaust at the same time or before the swap. it would be stupid to have SR + stock exhaust. waste of $2k+. but even if you got a 2.5" system for the KA it would still be decent on the SR, just not as powerful as a 3" system.
basically, my advice is to go ahead and get the 3" exhaust now and put it on. you'll like it better than stock i'm sure, and when you go SR, you won't have to mess with that at least. just make sure you WILL go SR later. if you're not sure, don't buy it and wait until you're sure you either will or won't go with an SR swap. you wouldn't want to spend good money on a 3" exhaust only to find out later you're sticking with a KA, and then have to sell the exhaust.