why are a larger diameter headers not worth as much on these cars? Dark Pony hit the nail on the head. These motors, while badass, are still only displacing 302 ci.
same reason a larger throttle body isnt worth anything.
How much you pick up from an aftermarket part is based on how crappy the stock stuff is. So the fact that one doesn't really gain a significant amount of power from stock is a testament to how good the stock stuff is. The other part of the equation is velocity.
Ill take a smaller primary tube header with a good exhaust velocity and keep my torque. we're talking about street cars here right?
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2011 Mustang GT Grabber Blue
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