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Running empty to get the 19-21 numbers I assume? How much does a 4" drop the exhaust temps? Maybe I shouldn't be towing with 65HP tune and stock exhaust?
He's got a 4" MBRP with no cat and a PPE air box modded intake...(S&B now but didnt have it then)
He'd call on the way out with cruise set between 70 and 75 giving me mileage reports. He was getting 19 -21, with the average right at 20.
I cant believe his truck can get 20-21 mpg with those 285 mud grips...