Headers ?
#1
CF Junior Member
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Join Date: Aug 2012
Location: Virginia Beach, VA
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Headers ?
Looking to change my exhaust manifolds to headers before I run a flowmaster 40 series. Any suggestions on the best headers to buy??
#6
CF Active Member
Definite gains to be had with headers.You are going to need a tune though.
Without a tune you will get a CEL and possible the danger of your truck running lean.
A tune with remap the fuel trims and turn off the rear 02 sensors so you can still pass emission inspections depending on the state.
If you purchase "shorty" headers that connect to the stock Cats a tune is not necessary,but HP gains will be minimal and probably not worth the effort.
Without a tune you will get a CEL and possible the danger of your truck running lean.
A tune with remap the fuel trims and turn off the rear 02 sensors so you can still pass emission inspections depending on the state.
If you purchase "shorty" headers that connect to the stock Cats a tune is not necessary,but HP gains will be minimal and probably not worth the effort.