Turbo back MBRP exhaust gave me 1mpg, XCAL and tunes from Spartan gave me another 2.5
Just got back from towing my boat to and from WI. Gear and boat probably 3k. Not a lot, but towing a load nonetheless. I got 17.5 mpg. That was at 60 mph, 2,000 rpm with my 4.30 geared duallie.
The...