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Originally posted by Coupe+May 16 2006, 12:59 PM--><div class='quotetop'>QUOTE(Coupe @ May 16 2006, 12:59 PM)</div><div class='quotemain'>
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Originally posted by Redog@May 16 2006, 03:38 PM
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@May 16 2006, 10:12 AM
From what you guys are saying then any aftermarket exhuast is illegal.
So redog, incase you didnt know, your exhuast is illegal.
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I never say that aftermarket exhaust is illegal, but useing a cutout or running a striaght pipe instead of a cat and/or muffler is illegal, for street use
Most exhaust systems are either 49 or 50 state legal, that one state being CA. I'm going to be putting that Jeg's cutout on my Delta, but on the street it will stay closed, at the track, 3 wing nuts, and gain a little bit of performance
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Your not supposed to replace the cat with a cutout, i think thats where your confused. Its just to bypass the muffler and the muffler is not a requirement of the federal law, the muffler does not have anything to do with emissions either. That is why almost every state i know of has no law against not having a muffler.
According to luosiana any aftermarket exhaust is ILLEGAL. So all exhuast systems are illegal in CA and Lousiana.
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MCL 257.707c provides the decibel levels at which the noise is considered excessive, while 257.707e addresses the procedure for conducting a test. It is important to note that while these objective levels are provided, a vehicle below these levels may still be in violation. MCL 257.707b requires an exhaust system to be maintained in good working order to prevent excessive or unusual noise, which can be subjective. MCL 257.707 requires that an exhaust system be equipped with a muffler, and a resonator and tailpipe, if originally equipped. This precludes the modification of an exhaust system beyond the replacement of worn-out parts.
An exhaust without a muffler is illegal in michigan.
Almost every state does have a law against not having a muffler.