Before I get the air intake and tune I want to get a cat back system, what is the best cat back system taking into account sound and performance gains? Siya October 07, 2023 19:42 Your best bet would be to consider 2.5'' Catback Exhaust. Related articles Can any power or delivery gains be expected on my N/A (Naturally Aspirated) VS V6 with the use of a 25mm plenumspacer over the 12mmplenum spaceror even not having a spacer? Comments 0 comments Please sign in to leave a comment.
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