Re: SML: GA16DE Internal Work

[Mike Kojima]

Wes wrote:
>I thought about Extrude Honing my exhaust manifold and they wanted $400.
>That's why I decided to get the New HotShot header. Mike, I'm assuming that
>there is more HP potential in the HotShot header because of the tuning
>effects of the tubular design. Is this true, does honing the stock manifold

Yes you are correct, the main reason why a header works is because of the 
tuning effect, not just reducing backpressure.  A well designed tubular 
header will make more power than an extrude honed or ported exhaust manifold 
unless the stock manifold was a very exceptional design in the first place 
which is pretty rare.

Mike
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