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Hummer H2 Superchips Performance Chips

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Superchips Cortex Programmer Reviews

Thank you

Reviewed By Austin M (New castle, DE) Reviewed for a 2004 Hummer H2 —1/17/2014 10:25 PM

Very pleased

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Superchips Cortex Programmer Reviews


Reviewed By William c H (Lawrence, MA) Reviewed for a 2003 Hummer H2 —5/11/2011 7:33 AM

My H2 has never performed better. Much better over the stock settings.

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