true, but either way unless you get both there is going to be a bottleneck somewhere, and iw as thinking header because it generally makes more power (assuming you arent a cheap ass and you actually buy a good product)
It seems like I've always heard that Integras make more power with headers than exhaust. The stock exhaust is supposedly at least reasonably efficient, but the header design is quite restrictive. Good headers I've heard are worth about 4-6 hp on a stock exhaust, while an exhaust w/the correct balance of back pressure/flow is only good for 2-4 hp on a slightly modded engine. If I were you I'd get a DC header, they seem to be the best without spending massive $$ for Spoon/Mugen, etc.
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