Does free flowing cats change the exhaust tone?
Are they louder that the stock cats?
How much performace gain are they worth over the stock cats?
Thanks for any info...
I have a 99 RT/10 with a side-pipe conversion. The car sounds sweet at Idle and is very loud when you get on it, but this is not my problem. The problem is it has an extremely loud HUM when I am cruising around. (It sounds like you are holding a stethoscope to the floor of a school bus that is...
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