99-04 LS1 & LS6 Corvette Tune Hollander_590-03484 THIS IS A SERVICE NOT

THIS IS A SERVICE NOT A PHYSICAL PART

Years Make Model Engine / application notes 2007 Buick Rainier 4

3500 HD Classic 2007-2010 GMC Sierra 6

If the tag is illegible or not present

2L L6 2003-2005 GMC Envoy 4

99-04 LS1 & LS6 Corvette Tune Hollander_590-03484 THIS IS A SERVICE NOTStock 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