can anyone explain how these work? looking at mine, in the right pipe, you can kinda see a little metal disk. i heard that the disc starts spinning after a certain amount of RPM giving the car more torque. (i cant remember exactly what i was told).
my question is, if i were to get an aftermarket exhaust, would there be any point? i dont know if any of the aftermarkets have those metal discs so would i get much gain in hp?
my question is, if i were to get an aftermarket exhaust, would there be any point? i dont know if any of the aftermarkets have those metal discs so would i get much gain in hp?