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Marietta Performance Chips

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Latest Customer Reviews

Jet Performance Module Reviews


High hopes

Reviewed By Will B (HUBBARD, OR) Reviewed for a 2011 Jeep Grand Cherokee —2/7/2016 5:57 PM

Read that works best if used with premium fuel, have ran premium in it the whole time I've owned my jeep. It does actually work as advertised. More power across entire RPM range, has increased my mpg by only 2 though nut still an improvement.

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Jet Performance Programmer Reviews


Programmer did not work.

Reviewed By Don C (Shelton, WA) Reviewed for a 2013 Ford F-150 —11/17/2015 8:16 PM

The programmer wouldn't read my Fords system, sent back to Jet. I haven't received it back, my update evaluation at that time.

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Jet Performance Module Reviews


Works as advertised

Reviewed By James M (Tampa, FL) Reviewed for a 2014 Jeep Grand Cherokee —1/25/2016 4:39 PM

I bit difficult to install aka no instructions. Customer service from Jet was very helpful. I was a little nervous with the jeeps cpu it is an expensive screw up.

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