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Mercury Grand Marquis Jet Performance Chips & Programmers

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Latest Customer Reviews

Jet Performance Programmer Reviews


great product

Reviewed By Stephen B (Medway, MA) Reviewed for a 1999 Mercury Grand Marquis —8/17/2012 8:42 PM

A must have for your vehicle

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Jet Performance Module Reviews


easy upgrade

Reviewed By Mark G (ODESSA, TX) Reviewed for a 2014 Chevy Silverado —1/22/2016 8:51 PM

It took about 75 miles to notice anything. But after that I noticed increased throttle response

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