VAST is pleased to announce its release of BMW N55 & B58 engine calibrations for Stage 1 all the way through Stage 3 turbocharger upgrades and full bolt ons and even E85 blends.
We recommend colder BMW spark plugs in addition to any tuning for your inline 6 turbocharged motor. Carbon cleaning is a secondary item to address in higher mileage vehicles past 60-80k miles.
Typical Stage 1 gains are 50hp/60ft-lbs of torque and Stage 2 gains are 60hp/80ft-lbs of torque. Results may be even better with good bolt ons, quality fuel, no carbon buildup in intake, etc. Stage 3 will depend much more on your turbo choice and other bolt ons and fueling.
We do recommend our VAST Transmission computer calibrations to make the most of the power band of your engine.
We are able to tune all the way from the beginning of the N55 with the early style turbocharger setup with the pneumatic waste gate all the way through the electronic turbo waste gate updates and the new B58 engine to replace the N55.
All of our tuning is done via the OBD port and it is not necessary to remove the engine computer.