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  1. Tuning and Diagnostics
    o'k i,m a noob please play nice #1 My 04 P71 Shifts into 5th Gear way to fast and is getting terrible gas mileage Since I put dual Flowmaster Series 10 Racing Mufflers catback turn-downs it sounds mean n loud hell yeah anyway iv'e been told I need to buy a new chip and have it Reprogrammed a...
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