Join Date: May 2009
Location: The Republic of Dave
Performance? I doubt it. The basic word on the 4.0L is that you're not going to get much more power out of it unless you're increasing displacement. The header might give you a little, but the converter is fine in stock trim.
The sound might change a little. I think you'll do more with a muffler change, though.
If it's worth doing, then it's worth overdoing.
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The build, the gear, and the mileage:
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