Is there any difference between the two? Right now i have a GSR axle-back connected to my apexi n1 b-pipe. I was wondering if upgrading to the ITR axle-back will yield me any positive results? Is it worth it? I really do love the way my car sounds with the stock muffler and i'm willing to sacrifice a few hp until i have money for a mugen axle-back. What do you all think?

 

ITR>GSR exhaust
flow 30% more
go for it

 

Does the muffler itself flow 30% more? I always thought it was a combination of the header/cat/cat-back that flowed 30% > than the GSR exhaust system.

 

Except for the 1st inch behind the flange on the ITR rear muffler, the rest of the rear section runs a slightly larger pipe than the GS-R.
I would just wait...


Jason

 

Its worth it if the ITR muffler is free, hehe.

 

Heh, i'll trade ya

Thanks for the info guys . One last question, do any of you know if a stock ITR axle-back will even bolt on to the stock GSR piping?