jc04ss Posted July 12, 2007 Report Share Posted July 12, 2007 Found a shop in town, Shelley Performance, that can do dyno work and tunes. Couldnt do mine on the dyno cause it is AWD, but they did the tune with HPtuner and drove it and made the adjustments. All I can say is HOLY S#!%!!!! What a difference. This is what the truck should have been from the factory. Better response with the motor, the trans is a whole different beast now! I cant comment on the gas mileage cause I cant keep my foot out of it. The guys at Shelley Performance did a great job explaining what they did and what Chevy had programmed. They (Chevy) sure program these trucks with a alot limits, I guess for motor protection. Quote Link to comment Share on other sites More sharing options...
brobradh77 Posted July 12, 2007 Report Share Posted July 12, 2007 Thats great man..yeah a custom tune really wakes the truck up Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted July 13, 2007 Report Share Posted July 13, 2007 You made a wise decision getting tuned......... Quote Link to comment Share on other sites More sharing options...
Oo p0op oO Posted August 16, 2007 Report Share Posted August 16, 2007 shelley or kelly performance? damn it i have to get a tune...but i need a 2/3 drop also.....im stumped Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted August 16, 2007 Report Share Posted August 16, 2007 damn it i have to get a tune...but i need a 2/3 drop also.....im stumped get tuned first.............. Quote Link to comment Share on other sites More sharing options...
NashSS Posted August 17, 2007 Report Share Posted August 17, 2007 get tuned first youll love it i promise Quote Link to comment Share on other sites More sharing options...
RockHead Posted August 17, 2007 Report Share Posted August 17, 2007 Quote Link to comment Share on other sites More sharing options...
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