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Old 03-21-2012, 08:24 AM
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RicardoJM RicardoJM is offline
Rising Sun Member
Join Date: Jul 2007
Location: Centennial, CO
Posts: 2,396

I'm running a header on my F.5 and Air Randy has a header on the 2F in the Mule. My header experience has been OK. I did have an exhaust leak upon initial installation which was likely do to installer error. I then put on a REMFLEX gasket which worked great until I damaged it while tearing down for a rebuild. I'm sure it flows the exhaust better than the stock exhaust manifold, but I can't really notice a difference.

With a header, I strongly recommend a fluid heat riser. After installing the fluid heat riser; I have not ever vapor locked in the summer and my engine warms up much better in the winter.
Ricardo Maestas - Bio Page
1999 LX 470
SOLD - 1971 FJ-40
TLCA #18941
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