From what ECS has to say the entire CSL exhaust system reduced weight by a total of 11lb, the muffler accounts for 5lbs of the reduced weight.
I think they used different materials as well as thinner walled pipes, if that is the case (thinner pipes) the people that like a bit of S54 rasp would love the CSL exhaust.
Going from euro headers/section 1>SS stuff definitely reduced the rasp and I would have to assume it's partly or mainly due to resonance from a thicker walled pipe, at least that's my take.
I think they used different materials as well as thinner walled pipes, if that is the case (thinner pipes) the people that like a bit of S54 rasp would love the CSL exhaust.
Going from euro headers/section 1>SS stuff definitely reduced the rasp and I would have to assume it's partly or mainly due to resonance from a thicker walled pipe, at least that's my take.
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