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Now I know I wont be getting any extra power out of this header, but my stock exhaust manifold is cracked and the Megan header will look better.
What is your opinion on these?
Also what is the collector mod Ive heard about?
 

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Its fine to get a megan header, it will look alot better as well and a lot of people take those headers and upgrade the collector from 2 inches to 2.5 inches for extra flow.
 

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NOMnomNOM
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i have one and its fine. it kind of tarnished and isn't really shiny anymore, but still makes the engine bay look much better. i wish i could powder coat it. i do not think it will stick..

the collector mod is converting the 2 inch pipe where the header goes to 1, from 2 inches to 2.5 inches, for 2 inch exhausts. this is something i still need to do..
 

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I was thinking of doing a 3inch exhaust, would that be to big for the H23?
Depends on who you talk to. People will argue about exhaust velocity, but all of the dyno's I've seen, the 3" exhausts make the most power, across all of the rpm's, than anything smaller; this was on stock internal motors fyi. Of course, these were on like H22's, ITR B18's, F20/22's ect.
 
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