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Early '99 Exhaust ... Need Help ASAP
Newbie Questions on the subject..... So how much noisier is it going to be inside the cab with muffler & cat deleted? What kind of power gains can one expect? Will this improve fuel economy....if you keep your foot out of it?- IdahoPowerStroke
- Post #21
- Forum: 99+ 7.3L PowerStroke Engine & Drivetrain
