Thread: High-flow cats?
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Old 04-13-2014, 05:38 PM   #5
wparsons
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Quote:
Originally Posted by akyp View Post
Bear in mind the stock FP also has a muffler/resonator, while most aftermarket FPs don't.
Stock FP has a helmholtz resonator, not a muffler. It'll only reduce rasp, not actually reduce volume.
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