JackyBoi Posted November 6, 2014 Share Posted November 6, 2014 Right, so I have a twin turbo J-Spec Supra and I removed both cats yesterday and replaced with titanium straight pipes but it still isn't very loud... It also has a 4" titanium rear box which is the reason for my confusion... Am I missing something here!? Any help would be hugely appreciated! Link to comment Share on other sites More sharing options...
ATB Posted November 6, 2014 Share Posted November 6, 2014 The turbos cancel out a lot of the sound. Do you have a restrictor plate on the car? Ironicly I made a video today of my exhaust. BPU with an HKS High power system. You can check if it sounds similar to yours, though I would guess your car should sound louder than mine. Link to comment Share on other sites More sharing options...
Nic Posted November 6, 2014 Share Posted November 6, 2014 Do you have a full aftermarket cat back exhaust (complete exhaust system from the cats backwards) or just the rear box? Do you know what brand/model the exhaust is? Do you have a silencer(s) on the mid pipe(s)? Link to comment Share on other sites More sharing options...
The Raven Posted November 6, 2014 Share Posted November 6, 2014 Yup he does have a ring in place. As said above the tubbies will reduce a lot of sound. Try an na double decat that's one loud car Link to comment Share on other sites More sharing options...
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