Thread: 4.0 headers?
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Old 01-25-2014, 03:08 PM
Fx4wannabe01 Fx4wannabe01 is offline
Ford Ranger Driver
Join Date: Sep 2009
Posts: 4,058
Default Re: 4.0 headers?

Apples to Oranges....

300 cubes versus 200 cubes. 300+ horse versus 150. Headers make a decent difference on higher cubes and higher horse. On a Ranger, it's an expensive option with very little gain. I only noticed a very slight tone difference and a slight improvement in power high in the RPM range. Unusable improvements in my opinion. However they look better than the cast manifolds through the wheel well. I not forcing air like Logan is above. My engine is essentially stock with new exhaust and an intake system with custom filter box.

Just do a new cat back. The Flowmaster Delta 40 sounds best on your 4.0L OHV. Bumping to 2.5" piping will deepen the tone too.
'01 XLT disguised as a '03 Fx4 Level II.
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