Pay in 4 interest-free payments of $68.37 Learn more
Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
JB4 is CARB Approved Under Executive Order (EO) No
The JB4 tuner installs between your car's sensors and the DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster
supports advanced engine safety monitoring
and safety than your average performance chip• Quick Plug & Play Installation• CANbus OBDII integration offering unrivaled tuning features and performance• Improved performance over non-integrated chip tunes• Runs as smoothly as stock
Expect a much more aggressive tone than the factory muffler produces
Group 10: JB4 Tuner for VW Jetta & Golf EA211 1.4L TSI Type:1.0T All JB4 is CARB Approved UnderGroup 10: JB4 Tuner This easy to install plug and play tuner attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost, timing, and fueling for optimal performance and reduced turbo lag. Includes full CANbus allowing the JB4 to access and incorporate all engine data in its tuning strategies, incorporate unique safety features such as keeping boost pressure low until oil and water is up to temperature to provide proper
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