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i saw on the january 2002 import tuner that the hayame intake for the 2k1 civic gives 4.2 hp more and the greddy evo exhaust give 1.8 plus the exhaust cost like 3 times the intake so i'm thinking of not getting an exhaust until it has more power

but anyways, that's not my problem , i was thinking with all this intake exhaust and all this power things or performance parts for our 2k1's which are the ones from each category that gives off more power than the rest, obviously, the hayame intake is the best intake for more power, but what about the headers, exhaust, etc.........

 
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was the exhaust put on just by itself? or did it work w/ the intake to create that 1.8 hp?

 
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I do believe that was including the intake, so it produced an additional 1.8 hp, but if you are serious about the power why don't you just go get an upgraded fuel rail and install a NOS system? Chances are you aren't gonna feel the additional 5 hp with just that intake [IMG]i/expressions/face-icon-small-wink.gif[/IMG]