JB4 AntiLag (Anti-Lag) kit for BMW N54 Vellfire Available in 10mm

Available in 10mm

Boosts airflow and performance

• (2) bracket screw washers

Holding 3 gallons more than leading competitors

2009-2016 E89 BMW Z4 sDrive35i/is

JB4 AntiLag (Anti-Lag) kit for BMW N54 Vellfire Available in 10mmIncludes a programmed chip and wiring harness to allow on the fly anti lag. Select a gear, hold down the volume button, floor the car, and once boost has built up release the volume button to instantly take off under full boost. Absolute must have for rolling races of any transmission type and works well for automatics off the line too. Requires a BMS back end flash map and ethanol fuel is strongly suggested. Installation directions and additional