Originally Posted by WhiteAccord
not true at all
it will make a performance difference
i would stay away from catback systems, its mostly overpriced stuff
go to a shop and have them make something custom
get a bigger piping to the engine and avoid as many turns as possible, goal is to make it as straight as a journey as possible with as little as possible catylitic converters or if you have to have some make them atleast highflow ones.
too small of piping chokes your engine
too big will create a vacuum
find the sweet spot




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