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Cat back exhaust question
My 2017 2500 SLT is basically a stock setup 6.4l 3.73 GEARS 33" tires 2" level kit. I live in the British Columbia interior,tow a 7000# travel trailer and its 8% grades to go anywhere from my city. I'm going to put in a cat back system to try and get more performance and with that gas mileage as...- Ruttinbuck
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- Forum: Heavy Duty
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