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Discussion Starter · #1 ·
can u guys give me the scoop on EXHAUSTS (the whole system)?

-Do they actually give more HP, if so why?
-Also, are resonating exhausts better than regular ones?
-what's a silencer?
-AND...If I have a 1year factory extended warranty left, am I allowed to put an exhaust on, or does MAZDA void the warranty?

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