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.
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.
Higher peak numbers of 555 HP/609 FT-LBS on 91 octane - Up to 597 HP/668 FT-LBS on 100 octane race fuel *with APR PLUS limited powertrain warranty*
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This upgrade must be performed at ECS Tuning's facility in Ohio.
This product was last offered at the strikethrough price on
07-31-2026
Get up to +68 hp and +66 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip
Get up to +68 hp and +66 through a safe and easy to use tuning module from RaceChip
Get up to +81 hp and +79 lb-ft through a safe and easy to use app-controlled tuning module from RaceChip
Get up to +81 hp and +79 lb-ft through a safe and easy to use tuning module from RaceChip
Increase of +134 Horsepower, and +215 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
For vehicle's equipped to run E85 Fuel
Increase of +141 Horsepower, and +192 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters!
Increase of +149 Horsepower, and +240 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters!
For vehicle's equipped to run E85 Fuel
Increase of +121 Horsepower, and +172 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!