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Originally Posted by 4gls
the SRT4 comes with resonators and no mufflers. if somebody could explain the difference between the 2, you get a cookie...
the resonators, or wtf you want to call them, muffle sound. the car is not unmuffled.
with regards to baffled or not, a large bore muffler with a straight thru design still does not constitute a straight thru muffler..... by straight thru they mean guys in the 70s who would cut open their magnaflow, torch out the baffles and weld it back together, hence also the rod test.
your avg HKS straight thru muffler has glass packing and other sound reducing measures built in, hence it is not illegal.
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WRONG!!! A straight through muffler is any muffler that DOES NOT have a baffle blocking/diverting the flow of exhaust gases. If you can put a meter stick right through the muffler its straight through, so guess what.... All those HKS/Ractive/OBXR/Vibrant/whatever mufflers are ALL straight through.
Straight through mufflers are illegal according the the HTA. Now for the SRT4, it has 2 resonators, both of which are straight through, and don't even have glass packing. By that definition, then its illegal as well, except that its stock, and passes all laws.
I want to get my godfathers S4(3" turbo back exhaust), and get a dB reading compared to an SRT4. The SRT4 is easily 10-15dB louder at WOT than the S4, at idle its even a bigger difference.