JMS Chip & Performance is an industry leader in custom vehicle calibration and tuning. We can tune all types of vehicles. Whether you need your 1,500HP EFI race vehicle tuned, or the jets adjusted on your motorcycle or dirt bike, JMS Chip & Performance is your one stop custom tuning shop.
Don't waste your time or risk damaging your vehicle, get your vehicle tuned right the first time.
DON'T trust your vehicle to an inexperienced tuner that simply resells products out of their house!
DON'T trust your expensive vehicle to a "free lifetime tuner".
Ask yourself, how can someone offer anything that is any good or of any real value for free?
JMS Chip & Performance has been custom tuning vehicles and providing mail order chips & flash devices since 1993!!
JMS Chip & Performance has built a solid reputation in the industry for the highest quality mail order chips and flash devices around!
You can trust JMS' great reputation and 50+ years of combined EFI tuning experience.