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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.
Hummer H2 Exhaust System - Sport By B&B - 2003-2006
Hummer H2 2003-2009 Replacement Air Filter by Airaid
H2 Light Cowls by TeakaToys - TEAKA-H2-201
Hummer H2 2007-2009 High Output Alternator Kit 250 AMP by Wrangler NW
Hummer H2 2008-2009 6.2L Throttle Body Spacer by Airaid
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