The JB4 piggyback tuner from Burger Motorsports enhances performance on VW Golf R and Audi S3 models equipped with the EA888 Gen4 engine, delivering up to +50HP and +65 lb-ft of torque on 91/95 RON fuel on stock vehicles. It intercepts signals between the sensors and ECU without altering the factory software, ensuring plug-and-play installation and reversibility.
Key Features
This tuner supports CANbus integration for advanced functions like boost-by-gear mapping, air/fuel ratio monitoring, knock protection, and up to 8 switchable maps for different fuel octanes or mods. Users can connect via Bluetooth for real-time logging, adjustments, and app control through JB4 Mobile. It maintains stock drivability, improves 0-60 times, and works across all drive modes without affecting fuel economy in normal use.
Compatibility Notes
Designed for MQB-platform cars like the Mk8 Golf R and 8Y Audi S3, it requires 91+ octane fuel and is not VIN-locked for easy resale. Power gains vary by map, fuel quality, and conditions, reaching higher with bolt-ons like intake or downpipe. Installation is quick, typically under 30 minutes, with no permanent traces.
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