The BlackBoost FTA (free to air) adapter converts the factory diverter valve into a blow off valve by redirecting the compressed air from the turbo to be vented to the atmosphere instead of the air being redirected into the air intake.

-No Tuning required
-No Check Engine Light
-Plug and Play Installation
-Machined 6 Series Aluminium
-Iconic Blow off sound

The actuation of the diverter valve depends on manufacturer specification.