Description: JKS teams up with Superchips to bring you the J-Cal/Flashcal programmer offering a ton of benefits specially designed for the new Wrangler JL and Wrangler Unlimited JL. This module installs in...More Details »
Description: JKS J-Cal (Flashcal) Programmer Features
Corrects speedometer for tire sizes up to 42"
Speedometer re-calibration for gear /axle swaps up to 5.38s
Locking axle options with...More Details »
Item #: 3571
Items 1-2 of 2
The Ultimate Lifted Suspension Protection Coverage and it’s FREE!
A 5 year - 100,000-mile plus drivetrain warranty is available for Jspec equipped vehicles as a Supplemental Drivetrain Limited Warranty to match your new vehicle express drivetrain limited warranty Jeep. The protection applies to any Jspec eligible suspension systems purchased on or after November 1st, 2013.
What is FMVS No. 126?
When you see the FMVSS Compliant Symbol you will know with confidence this application has been tested and successfully passed the Federal Motor Vehicle Safety Standard No. 126 compliance test. This highly specialized test was performed to prove the installation of the particular Jspec suspension system, with specified wheel and tire package will not compromise the performance and effectiveness of the vehicle’s Electronic Stability Control (ESC) system keeping you safer on the road.