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Headers vs hi-po exaust manifold.

Walter Smith81
New User
Posts: 5
Joined: 01/14
Posted: 10/18/14 10:35 AM

I have 66 mustang 289.I would like to kick up the exhaust system. but I am divided on   the Hi-Po manifold or headers .would like some opinions .

        thank, you.
  Walter Smith.  

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New User
Posts: 13
Joined: 08/09
Posted: 07/04/15 09:51 AM

After I rebuilt the 289 in my '65 coupe, I installed tri-y headers on it and ran them for some time.  I finally got tired of the exhaust leaks and the heat generated by the headers and replaced them with a pair of repro hi-po manifolds.  I don't drive the car hard so there was no noticeable difference in performance.  The engine compartment is much cooler, too.  

So I guess it depends on what you're looking to accomplish by choosing one over the other.  

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