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      12-31-2011, 12:33 PM   #30
N0OS3
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Drives: E90
Join Date: Feb 2010
Location: Oak Harbor, WA

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well... i'm sure any part of your engine thats directly attached to your block is going to be warm... what methods are you planning on going about measuring the heat transferred from the headers back to the engine block?
cuz as i see it, convectional heat is going to be the same no matter what unless the material the headers is [made of] different... wrapping it in cloth is only affecting conventional heat; which isn't affecting the engine bay that much anyway...
The biggest and most purposeful modification is the primary catalytic converter deletion... heat transfer i'm sure is probably only a small portion of horsepower increase

looking foward to the dynos!
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