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Marietta Performance Chips

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews


Range Works

Reviewed By Scott L (Greeley, CO) Reviewed for a 2013 Chevy Silverado —11/30/2016 9:03 PM

The device does what it promises - Keeps the engine on all eight, all the time. My mileage has gone up two tenths and the transmission shifts less without the AFM. I would recommend that you cover the blue indicator light with a strip of electrical tape (or at least cover it partially). Great product all around.

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Jet Performance Module Reviews


Still happy after all these years!!!!

Reviewed By Steven B (Smithfield, UT) Reviewed for a 2004 Ford Mustang —11/29/2016 10:39 PM

Been using this product for years. Two 94 GTs and now on my 04' GT. Never fails to increase performance as promised. Would buy it again...Thanks

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Jet Performance Module Reviews


French

Reviewed By French S (Munford, TN) Reviewed for a 2012 Jeep Liberty —11/25/2016 3:22 PM

I can tell a noticeable increase in horse power. Which was much needed for the 4 cyl. I really like the way the transmission shifts now too.Haven't noticed any increase in mpg yet. . In short I love it. Matter of fact I even ordered one for my jeep the next day!!!

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