World's Fastest

Porsche 997 Turbo

Learn More ▸

  Home > Products > Porsche > 911 > 991.1 (2012-2016) > Turbo & Turbo S > Engine Upgrades (External) >

EVOMS 991TT Diverter Valves
EVOMS 991TT Diverter Valves

Alternative Views:

Our Price: $319.00

Product Code: DV90DEGBLK-991TT


Our direct replacement diverter valve pair will eliminate the notorious "honking" sound commonly heard when the OEM valves have failed. Our valves will restore lost power and will hold more boost pressure than the stock units for added performance. In addition, they recover quicker than the OEM valves which allows for better spool after shifts. We designed our valves with a 90 degree vacuum port which allows for additional vacuum line clearance and a trouble free installation. The EVOMS Billet Diverter Valves for the 991TT come as a complete kit, including everything you need for installation.


  • Engineered out of Billet Aluminum
  • Stiffer Spring to Allow for More Boost Pressure
  • Successfully Tested over 1,000 Horsepower
  • Cheap Insurance for all Cars Ranging from Stock to Over 1,000 Horsepower
  • Available in Black Only
  • Lifetime Warranty

• Pricing subject to change without notice.
• This product may not comply with your local emissions standards. EVOMS is not responsible for emissions compliance, please purchase with care.

Share your knowledge of this product. Be the first to write a review »