JMS has built a solid reputation in the industry for the highest quality mail order calibration programing!
You can trust JMS' great reputation and 90+ years of combined EFI tuning experience.
Tuning Hourly Rate: $500.00 per hour (includes dyno time, call for appointment, does not include device.
NOTE: We do not modify or turn off the vehicles emissions system. So don't ask!
Our mail order tunes offer the BEST tuning available for your SCT tuning tool: