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  1. 1st Gen - Engine, ...
    So I've got a Topspeed Header and a Fujita F5 intake on my car. The previous owner put the Topspeed header on, so it wasn't my choice haha. It "hisses" under acceleration, and I've read this header has this problem. What causes this sound? The flex pipe? Is the flex pipe the same as a test...
  2. 1st Gen - Engine, ...
    For the past few years I have been experimenting with my exhaust...First installing DC Sports Headers and RT Cat. After having problems with the noisy flex pipe in the DC Headers, I removed this piece as well as the rear resonator and welded in a straight test pipe. This setup worked well for...
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