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the Level 1 tune makes a great option with a little less throttle response and boost but still a lot of fun
Programming the Stock ECM (on a stock vehicle) with our calibration will net you up to 20 HP and 90 lb ft of torque with just a flash
- CAD designed and CNC machined flanges replacing factory troublesome studs with through bolts and nuts (pictures shown are form when we laser cut flanges previously)
- No modifications or tuning is required (but tuning is recommended for optimal results)
GMC Yukon 6.2 (2019 - 2021*) 4500 the Level 1 tune makesImprove your truck or SUV's performance and drivability with a Peitz Performance Delta tuning package! We developed these tunes with the overall driving experience in mind. Not only will you gain power at wide open throttle, but you will also feel the difference at part throttle via improved throttle response and quicker shifting. These packages are intended for stock L84 5. 3 liter and L87 6. 2 liter Silverados, Tahoes, and Suburbans. In order to
