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JMS Single Custom Tune

JMS-Single Tune
0.01 LBS
Free Shipping

Product Description

Bought an SCT device from another company and not happy with the results? 


JMS can create 3 custom tunes specifically for your vehicle!  After ordering, your programs are sent via email.


Ford custom tuning -> (1988 - 2011) Every Ford vehicle supported


GM custom tuning -> (1998 - 2011)  Supported engines 4.8L, 5.3L, 6.0L, 6.2L, 8.1L, 6.6L, LS7, LS9, LS2, LS3, LS6


All custom tunes are created based on our extensive experience on our THREE in-house chassis dyno's.

JMS custom tunes are the best possible tunes available for your vehicle, period.

We are SCT's oldest and most trusted dealer with over 45 combined years of tuning experience. JMS has been in business since 1993 and we have tuned over 20,000 vehicles (yes, you read that correctly).  We operate out of a real building and are not your typical fly-by night internet "car tooner". 

 Please fill out the form with the requested information. If you have any questions, please give us a call or send us and email .

Once your order is placed, a JMS representative will contact you via telephone or email to discuss your custom tune(s).  Or call 601-766-9424.


 Click here for the program used to load a custom email tune (.CEF file)

Product Reviews

Write your own product review

  1. Awesome tune!

    Posted by Randell J on 4th Aug 2015

    I own an 01 Crown Victoria Police Interceptor and I was in need of a tune after installing long tube headers and the 80mm MAF for an 04 Maurader. These guys were super knowledgeable and were willing to answer all of my stupid questions about the tune! My car performs much better after the tune and I've noticed a slight increase in gas mileage as well! I would highly recommend it to anyone who is serious about their cars performance.

  2. Police Pursuit Vehicle Tune

    Posted by Ofc. Chris on 7th Sep 2012

    When our department needed to remove speed limiters and increase performance on our 2011 F-150, JMS came highly recommended by American Muscle. We contacted JMS and even through the hurricane, they gave us a custom tune and it works GREAT! We now have the upperhand on the bad guys :) - MUCH MORE POWER!

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