JB4 AntiLag (Anti-Lag) kit for BMW N54 Select:Full Kit They have a 2" outside

They have a 2" outside diameter on one end to properly fit 2" N54 Inlets

Our Stage 2 LPFP flows approximately 100% more than stock

The ARM MK6 GLI Catless Downpipes is designed with a 4" resonator in the midpipe section to give your 2

• Power gains of up to 40hp to the wheels on a stock vehicle

delivering a deeper

JB4 AntiLag (Anti-Lag) kit for BMW N54 Select:Full Kit They have a 2" outsideIncludes 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