JMS is a manufacturer of high-quality automotive electronic components. We develop and design reliable products that will improve the performance of your vehicle. We also distribute a host of premium brand performance products for many different automotive applications. Founded by hardcore enthusiasts in 1993, JMS has become an industry leader in automotive electronics, nitrous oxide injection, supercharging, turbocharging and custom EFI tuning. We have over 20 years experience in manufacturing, aftermarket up-fitting, and turn-key automobile engineering.