Calibrated Power | 2004.5-2005 GM LLY Switch On The Fly Tune Only EFI Live Spade

Get All Five Custom Tunes, Switchable while driving (Switch-On-The-Fly) Emissions Intact – you do not remove your emissions equipment 50 State Legal! SPADE Tuning, Part No. #11-10, E.O. No. D-845 Have you made performance modifications to your truck?  Do you need DuramaxTuner.com Switch-On-The-Fly (SOTF) Custom Tuning? Instantly Switch Between Power Levels Total flexibility to select the power level you need   No need to plug in a clunky box and re-flash your truck to change tunes Designed to be safe for your engine and emissions equipment DuramaxTuner has 14+ years of experience with Custom Switchable Tuning Fully customized tuning with more than 100+ calibration changes from stock No hacking wires into control units or fuel pump and turbo sensors More power and less soot than box programmers World Class Customer Service Phone Support! Sport Tune Peak Horsepower & Torque +100 RWHP + 180 ft-lbs Total 410 HP and 700 ft-lbts Fastest possible accelerati