No aftermarket tuning required. Will work on stock tune or aftermarket tunes.
This high performance adapter mounts between the OEM bypass valve/solenoid and the turbo housing, causing the unused charge air to vent to atmosphere (VTA) giving off the well known, but distinct sound all turbo owners know and love! The adapter bolts right in with the included longer bolts, no other modifications or tuning are required.
Installation is simple (car does not need to be raised) and all mounting hardware is included.
Precision CNC machined out of high quality aircraft grade billet aluminum.
Available in your choice of color: Onyx Black, Royal Blue, Race Red, or Pure Aluminum
Link to buy: http://www.boombaracing.com/2015-volkswagen-gti-blow-off-valve-adapter-bov/
Sound clip: https://www.youtube.com/watch?v=w9nLqwhx_D4
Installation video: https://www.youtube.com/watch?v=ANMlnqM_psE