Hey guys, noob here, got an 07 lmm with turbo back straight exhaust, doesn't seem to wild as far as power, but pulls my 34' fifth wheel better than the 08 I had for work. I would really like to know what kind of tuning I have in it, or if I want to change it, how would I go about it. The dealer can't get find the original owner, and won't give me his #. any questions I'll be happy to try and answer.
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