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high flow cats
Ok guys, im new to this, with that being said i have a couple questions. My car is completely stock aside from the muffler delete. it is an l99. i was looking at getting a cat-back exhaust and maybe some HF cats. first question, what will happen if i do go through with this? increase in power? Make it sound better?
need some help and thanks in advance. any links to other threads regarding this same question will be appreciated.
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