Quote:
Originally Posted by m4a1mustang
Yeah, that's totally normal. Our engine coupled with an X pipe = hiss on decel.
If you ever listen to some of the Zs without a crossover pipe (like the AAM Competition 1st generation CBEs) they don't have any hiss at all. But if you've got an X there will be hiss!
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Thanks Steve It is very faint, and does not bother me (unless it means I did something wrong with the install). The exhaust sounds so incredible!
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Rain, snow, sleet, hail: 2009 Mazda 3 sGT HB
Everything else: 2009 370z, PW Touring 6MT
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