96-97 LT1 Impala, Roadmaster, Caprice Tune 2005 3L Flex 2007 GMC Sierra

3L Flex 2007 GMC Sierra 4

3L 2006-2007 Chevrolet Monte Carlo 3

Hollander lookup numbers: 590-05104

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8L V6 1997 Oldsmobile LSS 3

96-97 LT1 Impala, Roadmaster, Caprice Tune 2005 3L Flex 2007 GMC SierraStock LT1 engines typically yield 15 to 20hp, 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 your vehicle specifications to get the most out of your