Granatelli Motor Sports 540-203 50mm Piston Actuated Wastegate

The Granatelli Motor Sports 50mm Piston Actuated Wastegate delivers precision boost control and superior reliability for high-performance turbocharged applications. Designed for street performance, racing, and diesel builds, this external mechanical wastegate features advanced piston actuator technology that provides enhanced control compared to traditional diaphragm-style designs.

Key Features:

• 50mm relief diameter for optimal exhaust flow and boost regulation
• Piston actuated design delivers greater piston movement for more precise valve control
• Black anodized aluminum top cap for heat resistance and corrosion protection
• Stainless steel base construction ensures long-term durability
• V-Band actuator retainer and inlet/outlet flanges for quick, leak-free installation
• Heat-resistant slip seal improves durability during prolonged high-load operation
• Mechanical actuation provides reliable boost management without electronic intervention

What's Included:

• 50mm Piston Actuated Wastegate
• 7 psi spring for lower boost applications
• 14 psi spring for moderate to high boost setups
• Stainless steel V-Band flanges and clamps

This wastegate regulates turbocharger boost pressure by diverting excess exhaust gases away from the turbine, preventing overboost conditions that can damage your engine. The piston actuated design offers faster response and more consistent boost control than conventional diaphragm wastegates, making it ideal for performance enthusiasts and professional racers who demand precise boost management. Perfect for turbocharged muscle cars, import tuners, and diesel performance builds.