gannon888 Posted October 17, 2007 Share Posted October 17, 2007 i just bought a new cat back system for my n/a supra (3 inch diameter pipe). do i just bolt it on, or do i have to do anything to the supra? any suggestions would be appreciated. Link to comment Share on other sites More sharing options...
mr lover Posted October 17, 2007 Share Posted October 17, 2007 get it bolted on mate Link to comment Share on other sites More sharing options...
ECK Posted October 17, 2007 Share Posted October 17, 2007 yip get it on and enjoy!!! Link to comment Share on other sites More sharing options...
gannon888 Posted October 17, 2007 Author Share Posted October 17, 2007 i heard that the 3 inch diameter was for the tt, and that i would have to change the headers. Link to comment Share on other sites More sharing options...
TonyP Posted October 17, 2007 Share Posted October 17, 2007 I've just done this. It's sooo loud! Get it bolted on. Link to comment Share on other sites More sharing options...
gannon888 Posted October 17, 2007 Author Share Posted October 17, 2007 ok thanks for your help Link to comment Share on other sites More sharing options...
ECK Posted October 17, 2007 Share Posted October 17, 2007 i heard that the 3 inch diameter was for the tt, and that i would have to change the headers. no not at all ive just changed my cat for the 3inch decat pipes and a hks hi power system;) what a noise that makes:D Link to comment Share on other sites More sharing options...
supra steve Posted October 17, 2007 Share Posted October 17, 2007 hey guys,just ordered 3"pipe from turbo to my hks backbox and was a little worried that there wont be any back pressure to stop my turbos spooling up too quickly.was going to make up flanges with different sized hole diameters to combat this.any advice appreciated. Link to comment Share on other sites More sharing options...
ECK Posted October 17, 2007 Share Posted October 17, 2007 hey guys,just ordered 3"pipe from turbo to my hks backbox and was a little worried that there wont be any back pressure to stop my turbos spooling up too quickly.was going to make up flanges with different sized hole diameters to combat this.any advice appreciated. i beleive you will need to fit a restrictor ring, different sized rings give different boost levels im sure someone will confirm this soon (i hope!) alex Link to comment Share on other sites More sharing options...
supra steve Posted October 17, 2007 Share Posted October 17, 2007 cheers mate,just wanted someone to confirm my thoughts.. Link to comment Share on other sites More sharing options...
Homer Posted October 17, 2007 Share Posted October 17, 2007 Sit down and have a read of this: bpu You can't just decat the TT and not do the other mods. Link to comment Share on other sites More sharing options...
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