Even under stock boost pressure, the rubber diaphragm in the original 2.0T diverter valve can fail. When the seal fails, the boost escapes past the turbo, which significantly reduces performance.
This mechanical design that is more durable and is a great upgrade for all stock or modified EA888.3 2.0T TSI engines,
FITMENT:
MK7 GTI
MK7 R
AUDI S3 8V
AUDI RS3 FL