See more parts for your Porsche 955 Cayenne

Agency Power Diverter Valve Pair Porsche 996TT | 997.2TT |991TT | Cayenne TT | Panamera TT


Agency Power

Model #AP-996TT-155BK

Free Shipping

In Stock

Help me decide

Shopper Award

One of the most important upgrades for the Porsche 996TT, 997.2TT, Cayenne Turbo or Panamera Turbo is to replace the factory Bosch diverter valves. The factory valves are prone to leaking pressure under increased boost when the car has an upgraded ECU flash. As well, the factory Bosch valves will taper boost off with the diaphragm design even at stock boost levels. To help keep the boost pressure constant all the way to redline, upgrading the stock diverter valves to the Agency Power Racing Diverter Valve Kit will improve your cars overall performance.

These valves are CNC machined 6061 aluminum which have been precision engineered to fit with the stock or aftermarket F-Hose and intake return hoses. The internal construction of the valve uses a machined piston with proper o-rings to ensure a smooth motion that is air tight to prevent any boost leaks. The spring has been engineered to hold moderate to aggressive boost increases on the 996TT, Cayenne TT and Panamera TT vehicles. The valves feature a 90 degree removable swivel connection for easy fitting with the factory vacuum hose. If needed, the top of the valve unscrews allowing you to re-greased and service the valve. Valves are available in black and feature the Agency Power text and logo laser engraved on the top. As tested, these valves are a great upgrade for stock K16 or K24 cars and have even been used in our 700HP turbo kits. Valves are sold as a pair.


  • CNC machined 6061 Aluminum Construction
  • Helps Maintain Constant Boost Pressure
  • 90 degree removable swivel connection for easy fitting
  • Sold as Pair
  • Available in black or polished Finish
  • Porshce 95B Macan S | GTS | Turbo 15-20
  • Porsche 991 Turbo 14-16
  • Porsche 996 Turbo 01-05
  • Porsche Cayenne Turbo 04-14
  • Porsche 997.2 Turbo 10-12
  • Porsche Panamera Turbo 10-16

All Agency Power products come with a LIMITED LIFETIME warranty when you fill out this form HERE.

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

Vehicle Engine Notes
Porsche 955 Cayenne

Porsche 957 Cayenne

Porsche 958 Cayenne

Porsche 95B Macan

Porsche 970 Panamera

Porsche 971 Panamera

Porsche 991 Turbo

Porsche 991.2 Turbo

Porsche 996 TT/GT2

Porsche 997.2 Turbo

Policies regarding warranty:
  • Agency Power offers a LIFETIME Limited Warranty against defects or failures.
  • Product Warranties are available for those who fill out the online warranty form on Agency Power.
  • Warranty is available with original Invoice showing purchase date.
  • Titanium exhausts and carbon fiber products carry a 12 month warranty from the date of purchase.

Check out these other great products