VAST is pleased to announce its release of BMW S55 engine calibrations for Stage 1 all the way through Stage 3 turbocharger upgrades including full bolt ons and even E85 blends. For anything beyond Stage 1 tuning, please Contact Vast Performance for product details and a quote.
We recommend NGK 97506 spark plugs, gapped at .022" in addition to any tuning for your inline 6 turbocharged motor. Carbon cleaning is a secondary item to address in higher mileage vehicles once past 60-80k miles.
Typical Stage 1 gains are 75hp/70ft-lbs of torque and Stage 2 gains are 150hp/150ft-lbs of torque. Results may be even better with good bolt ons, quality fuel and no carbon buildup in the intake, etc.
We also recommend our BMW ZF 8HP 8-Speed Transmission Tuning to make the most of the power band of your engine. https://vastperformance.com/products/bmw-zf-8hp-8-speed-transmission-tuning.
All of our tuning is done via the OBD port and it is not necessary to remove the engine computer.
Our remote Engine and Transmission controller flash is an OBD port flash. If tuning remotely, there is a refundable deposit due when purchasing the tune.