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Discussion Starter · #1 ·
Hey, just wondering...So far I only have intake and HKS exhaust, and i really want to buy a FocusSport 4-2-1 header/flex combo...would this sacrifice a lot of low end power? I want to focus on my mid-high end power...the 4-2-1 would probably be better than the 4-1 for now..correct?
 

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