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Mark where the header is close or touching the frame, pull the header, heat and dimple accordingly. You will see ZERO change on a dyno. It ia all in the installation and you rshop should have fixed the problem during installation. Heat wrap the headers where there is clearance. You engine compartment will thank you.

I do not have headers on my truck but have installed many on other vehicles I have owned. My Truck /boat isn't fast enough to warrant headers and deal with Kaliforia Smog SHT>


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