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SAVE 30% ON REVO ECU AND TCU SOFTWARE. DISCOUNT AUTOMATICALLY APPLIED AT CHECK OUT
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The JB4 is a true user adjustable plug and play solution. Power Gains: Starting at peak Gains 28whp 50ft-lb. Peak gains 40whp. in certain rpm ranges.The JB4 features CANbus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air/fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated water/meth control, and much more. The unit can be used with our JB4 Bluetooth Connect kit providing for full in-car engine parameter display, map switching, and adjustment.
• Up to 40whp on a stock vehicle• Improves 0-60 times and 1/4 mile times• Preloaded with custom Audi tuning software and up to 8 maps for various fuel and modification levels• The JB4 offers a lot more performance, functionality, 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. This is how your vehicle should have come from the factory• Compatible with all driving modes• Fuel economy unchanged during normal driving• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment• 91 octane fuel or better required for performance gains• Ethanol (E85) compatible tuning maps• Able to read/delete fault codes• Not VIN locked and can be removed without a trace and resold down the road• Made in the USA• Free USA Shipping• 5-year warranty
Vehicle Fitment
Audi JB4 Mobile demo video