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2011 Mercury Grand Marquis Performance Chips & Programmers

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Reviewed By JAMES L (PICKERINGTON, OH) Reviewed for a 2011 Mercury Grand Marquis —12/20/2012 3:05 PM

Easy to use. It did not offer my engine size for my 2011. mercury. It offered 2010 mercury grand marquis with a 4.6 engine. I used the correct year, other 2011 2012. It runs well, shifts chrisp. 20 mpg in town. Have not taken a trip with it yet. Satisfied. Jim in Pickerington OHIO, go Bucks.

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Reviewed By Marcel M (PHOENIX, AZ) Reviewed for a 2010 Mercury Grand Marquis —4/5/2014 12:49 PM

This cover is excellent quality, I am very impressed with it. It Keeps the Ford dealer from "re-programming to default" my set performance parameters on routine maintenance visits. Or at least it puts them on notice when they see their code reading machine will not plug in.... Then then the mechanic will check the work-order that they failed to read in the first place, and see I TOLD THEM TO NOT TOUCH MY PORT!this will change my parameters.They leave it alone and all is well with the world. :)

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2012 300 srt8

Reviewed By efrain c (BAKERSFIELD, CA) Reviewed for a 2013 Chrysler 300 —6/25/2016 7:17 AM

Amazing product. It's a must have

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