why are you complaining about 15mpg with a 4,000# trailer attached to your hind end?
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00 2500 2wd ext cab, SB. (BHAF, silencer ring MIA, Boost, EGT, FP Gauges, Breather bottle relocate, Fass 150/150, Fireball 150's, VA smart box, 4" exhaust)
03 Jetta TDI 5 spd "See tdiclub.com for all mods"