do you kno about how much hp you gain? bcuz my friend sellin me his InjenCAI and greddy evo catback for 300.The greddy is not that loud i guess from wut im hearing but can you still hear it from kinda far and is it a good sound at least. I thinks its a really good deal so i think i might go for it. wut you think?
as far as whp (wheel horsepower) gains are conerend: check out the link below. Turbo magazine did a dyno run of many exhausts (including the greddy evo) on a GTS and this lists the weights, horsepower gains, tip diameter and other specs..it also includes SOUND CLIPS, which are pretty helpful
Yes, but it is also not really legal in many of the states due to the dB levels at certain RPMs. The VS Exhaust produces like 89dBs at like 4000RPMs(?correct me if i'm wrong?)when the legal limit is like 92dBs(?) @ 7500RPMs
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