99-04 LS1 & LS6 Corvette Tune Hollander_590-03484 Unit will come programmed to

Unit will come programmed to your VIN with the updated calibration for your vehicle

2017-2020 Chevrolet Tahoe

3L V8 2003-2004 Chevrolet Trailblazer 5

Years Make Model Engine / application notes 2007 Buick Rainier 4

99-04 LS1 & LS6 Corvette Tune Hollander_590-03484 Unit will come programmed toStock LS1 engines typically yield 15 to 20hp and 25 to 30ft lbs of torque increase throughout the powerband, these numbers will increase accordingly depending on your modifications. We can make adjustments for various engine modifications as well as engine swaps. You will send us your computer or we can provide you with one. If you wish for us to send you a computer simply purchase one from our Factory ECM Category. Your computer will be adjusted per