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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
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
0L Twin-Turbo V6 Nettuno
increased sound
JB4 is CARB Approved Under Executive Order (EO) No
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 The JB4 tuner installs betweenGroup 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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