Get up to +21 hp and +35 lb-ft through a safe and easy to use tuning module from Racechip
Get up to +21 hp and +35 lb-ft through a safe and easy to use tuning module from Racechip
Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash. Includes JB4 side repair harness molex pigtail.
Proprietary tune box designed specifically for the R55/R56/R57/R58/R59 S, GP, & JCW up to 18-22 HP / + 28-32 TQ
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This product was last offered at the strikethrough price on
11-11-2026
2025+