I didn't Install my cutouts for anything performance related. I've read some people have gained 5-10 hp a friend of mine actually gained like 8hp but apparently the person above me lost power. I have heard that cutouts can cause false knock but I just installed them for the sound they sound badass when you are cammed and WOT it's awesome
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2010 Camaro 2SS/RS | 416 LS3 | FED stage 2 heads
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