034Motorsport Upgraded Audi I5 10V/20V Turbo Replacement External Wastegate Diaphragm - 035145797B



Part# 034-145-6003

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Does This Fit Your Car?

034Motorsport is pleased to offer this Upgraded External Wastegate Diaphragm for Early Audi I5 10V/20V Turbo Engines, including the MC, 3B, AAN, ABY, and ADU.

We carried the factory replacement diaphragm for 10 years before Audi decided to discontinue it. In that time, our engineers had the opportunity to develop and test a stronger, more durable replacement.

The result is this polyester reinforced, high-temperature silicone diaphragm, which is over 50% thicker than the factory unit and capable of performing in high-temperature, high-boost applications.


  • 2mm Thick High-Temperature Silicone Construction - Over 50% Thicker Than Stock!
  • Polyester Fiber Reinforced Diaphragm - Same Construction as OEM
  • Direct Drop-In Replacement
  • Ideal for High-Temperature, High-Boost Applications
  • Replaces Factory Part Number 035145797B


  • C4 Audi UrS4/UrS6 - AAN
  • Audi UrQuattro
  • C3 Audi 100/200 - I5 Turbo
  • B3/B4 Audi S2/RS2 -3B/ABY/ADU

Founded in 2005, 034 Motorsport is driven by the passion to bring motorsport-quality performance products and tuning to your Audi and Volkswagen vehicles.

⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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