Quote:
Originally Posted by Speed2th
either it is your header causing the noise, or you have exhaust leak.
I have Invidia Q300 on my car installed last year, it was just a bit louder than stock. So today i have tanabe overpipe and invidia front pipe installed and there is almost no difference of noise level. performance gain is barely
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It is absolutely the catless header that makes this setup so loud. No question. I don't think I have any exhaust leaks at time point!