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H2 Performance Computer Software Upgrade
(Refundable $550 Core Charge will be applied to your Order)
The gains on average are about 20-25 hp. Each ECM is specifically programmed for your vehicle. This is an exchange item and a core charge applies. Core charge fee of $500 will be applied at time you place the order and will be refunded when the original core is returned. This computer upgrade is for a 6.0L 2003-2008 H2.
Stage 1 2008 6.2L H2 Hummer H2-PER-807
Hummer H2 6.2L 2008-2009 Tuning System by Diablo
H2/SUT Dual Cooling Fans by Flexalite
H2 Heavy Duty Steering Stabilizer PM-H2-PER-741
Hummer H2 DuraMax Conversion by Teaka Trucks
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