hardknocks
June 24th, 2013, 04:09 PM
I have a 2004.5 LLY that already has a dsp 5 and a custom tune ut it is not suppling enough low end torque and the ones who wrote the tune said to log my driving and send it to them and they would see what is going on.is there a real simple read me? i looked at the one here and i don't understanad it. need a little help