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1998 Mercury Grand Marquis Performance Chips & Programmers

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


2010 grand marquis

Reviewed By john f (Stratford, CT) Reviewed for a 2010 Mercury Grand Marquis —12/14/2013 6:34 AM

Did download without any additional changes yet. Performance has increased. Also sounds better. Very easy to do.

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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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SCT X4 Power Flash Programmer (49-State Legal) Reviews


Relatively Straight Forward

Reviewed By Kirk B (LONE JACK, MO) Reviewed for a 2010 Chevy Camaro —11/10/2016 2:39 PM

I really purchased this tuner so I could purchase/upload a custom tune for my 2010 Camaro after I install my long tube Kooks headers with hi-flow cats. In the interim, I hooked it up and adjusted some parameters (axle ratio, idle RPM ) and uploaded SCT's tune. Seems straight forward. I'm not sure I can feel a seat-of-the-pants difference. I did notice the tuner already has a tune on it for long tube headers! I will upload that tune and evaluate before purchasing a custom tune.

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