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GMP Performance - In-House ESS Tuning N54/N55 software upgrades!
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07-26-2013, 11:26 AM
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GMP Performance
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Drives: E90 M3, E82 135i, E90 325i
Join Date: Aug 2009
Location: Charlotte, NC
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We have performed ESS Software upgrades on a few more cars.. get yours in here too!
We also just installed an ESS Supercharger in this Z4M Coupe
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Trey @ GMP Performance
Phone: 704-525-0941 x 254
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trey@gmpperformance.com
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www.gmpperformance.com
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