BMW M550i | 2018-2024 | Stage 1The BMW M550i delivers stealthy V8 performancebut the factory tune holds back the N63TU4 from true M car territory. WestTuneds Stage 1 ECU calibration brings massive torque, faster throttle, and sharper top end pulltransforming the M550i into a brutally fast daily weapon thats refined when you want it, and relentless when you dont. What Youll Feel: Huge gains in low end and midrange torque Sharper throttle response and more aggressive boost control

sharper throttle response

Developed and tested in-house by WestTuned engineers

Smoother torque curve with stronger mid-range and top-end performance

Compatible Vehicles:

Elevate your driving experience and enjoy the admiring glances your Huracan will attract on every road

No hardware required (stock downpipes and intercoolers supported)

Their streamlined shape aids in aerodynamics

The BMW 840i combines elegance and balance—but the factory B58 tune plays it too safe for a car this capable

Installation: Direct bolt-on

BMW M4 Coupe (G82

It generates increased downforce

Faster throttle response and cleaner pedal modulation