Squeezing out more power from existing components is the cornerstone of car customization for many drivers. JMS has the parts on-hand to reach that next notch of automotive performance with a variety of quick-installing devices that garner instant gratification! By using a voltage booster, you’re able to get an increase in fuel delivery, spark delivery, and cooling output. Or, check out a throttle body controller for your Mustang GT, to get incredible throttle response every time you step on the gas. You can even get a quick-launch trans brake system that will give your automatic transmission Mustang the ability to use a simultaneous first and reverse gear placement. Rev it up and launch like a pro, ensuring that your pony is the first one out of the starting gate.

There’s no need to worry about putting stress on your system or adding on further tuning devices, as JMS products are built to exacting specifications and will be good to go right out of the box. That means that you can obtain the performance and power that you’ve been searching for in just minutes, and save up your weekend for other projects.

JMS offers products that are true bolt-ons, with easy plug and play installation. Designed to quickly and safely add even more speed to your Mustang, CJ’s has a range of reliable, durable tuners that will fit in with just about any customized ride. Your tuner will be ready to go right out of the box, featuring American-made quality and the high level of performance that you and your car are craving.