97-98 LS1 Corvette Tune Year_2021 4L 1999 Chevrolet P30 4

4L 1999 Chevrolet P30 4

2017-2019 Cadillac ATS

without ext build date RPO ZN4 1998 GMC S-15 4

4L V8 1997 Chevrolet Suburban K1500 5

Module / primary service number: 12583827

97-98 LS1 Corvette Tune Year_2021 4L 1999 Chevrolet P30 4Stock 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