McLaren JB4 Performance Tuner for M838T Engines - Burger Tuning s5 b9 A3 8V Quattro – 2

A3 8V Quattro – 2

and/or fuel trims

It is recommended to replace this vent hose every 50k miles

5v2 bucketed fuel pump comes with a single Walbro 535 (F90000295) fuel pump

What's Included

McLaren JB4 Performance Tuner for M838T Engines - Burger Tuning s5 b9 A3 8V Quattro – 2Instant Horsepower and Torque Gains The JB4 is a plug and play McLaren tuner that plugs into easy to access sensors in the engine bay and works with your factory ECU tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. It features a 64mhz processor allowing sensors to be sampled 800 times per second using dedicated 10 bit digital to analog converters, ensuring smooth and powerful performance. No ECU flash