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Old November 15th, 2018, 05:54 PM
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glc glc is offline

Join Date: Jul 2012
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Remember, trucks need to be tuned differently than Mustangs. They are heavier, and need to be tuned for torque and not high end HP.

Also note that the 5 speed manual is a light duty Mazda box and can't handle much more power than the stock engine.

2003 F-150 XL RCSB 2wd 4.2 5 speed 3.55 LS