Granatelli Motor Sports 50mm Viper Series Blow-Off Valve

Granatelli Motor Sports 50mm Viper Series Blow-Off Valve – High-Performance Boost Control

Precision Engineered Boost Control for Turbocharged Applications

The Granatelli Motor Sports 50mm Viper Series Blow-Off Valve is designed for high-performance turbocharged engines that demand reliable boost control, fast pressure relief, and protection against compressor surge. Built for both street performance and racing applications, this valve delivers consistent operation under high boost pressure and aggressive driving conditions.

50mm High-Flow Design for Maximum Airflow Efficiency

Featuring a large 50mm valve diameter, the Viper Series is engineered to efficiently discharge excess boost pressure during throttle lift. This high-flow design improves turbocharger response, reduces lag between shifts, and enhances overall boost stability in high-horsepower setups.

Billet Aluminum Construction for Strength and Heat Resistance

CNC-machined from premium billet aluminum, this blow-off valve is built to withstand extreme heat cycles, vibration, and sustained boost pressure. Its robust construction ensures long-term reliability in demanding turbocharged environments, making it ideal for performance builds and forced induction systems.

Adjustable Spring System for Custom Boost Tuning

The adjustable spring preload system allows precise tuning of valve response, enabling users to match boost levels and driving style. Whether running low-boost street setups or high-boost performance applications, the Viper Series provides adaptable and consistent operation.

Vent-to-Atmosphere Performance Sound and Function

Designed as a vent-to-atmosphere blow-off valve, the Viper Series delivers a sharp, aggressive discharge sound while maintaining critical turbo system protection. This improves throttle response, reduces compressor surge, and enhances overall driving performance.

Built for High-Horsepower Turbo Builds

Engineered for performance enthusiasts, the Granatelli Motor Sports Viper Series Blow-Off Valve is ideal for turbocharged engines requiring precise boost management, improved reliability, and responsive throttle behavior. It is a functional upgrade designed for serious horsepower applications.