Revised diaphragm-based diverter valve
Revised diaphragm-based diverter valve
Resolve rough idle, eliminate whistling engine noises, and cure excessive oil consumption on your Gen-3 TSI engine.
Replacement seal for the pcv Located on top of your valve cover
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This product was last offered at the strikethrough price on
05-07-2026
Controls when excess gasoline vapors are pulled into the intake for burning
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Used when converting to custom catch cans or an aftermarket valve cover
Engineered to deliver consistent boost control even under the most demanding conditions
Replaces the failure-prone factory diaphragm for rock-solid boost control
Restore lost engine power, resolve underboost fault codes, and prevent compressor surge on your turbocharged Volkswagen or Audi.
Also called the "breather valve" or "oil separator"