Granatelli 540259 60mm External Wastegate Water-Cooled Diaphragm V-Band

Vehicle Fitment

• Universal - designed to manage boost on LS, Coyote, HEMI, diesel, and high-boost import turbo platforms; not vehicle-specific

Fitment Notes

• V-band connections - confirm your exhaust/wastegate plumbing uses matching V-band flanges
• Sold individually
• Water-cooled top requires plumbing into your engine's cooling system for full thermal benefit

Features

• Dual-port diaphragm design for smooth, stable actuation
• Water-cooled top cap improves heat control during sustained high-boost pulls
• Cast stainless steel base for durability under repeated cycling
• Black anodized aluminum top cap
• Prevents overboost and helps protect the engine under extreme load

Specifications

• Type: Mechanical, External, Diaphragm Design, Water-Cooled
• Wastegate Diameter: 60mm
• Spring Range: 7/14 psi
• Base Material: Cast Stainless Steel
• Top Cap Material: Black Anodized Aluminum
• Connection: V-Band
• Weight: 4 lbs

Included Components

• 1x 60mm External Wastegate, Water-Cooled Diaphragm Design

Product Description

Granatelli's 60mm wastegate gives serious turbo builds precise control over exhaust gas bypass, holding target boost pressure steady rather than letting it creep past safe limits. The water-cooled top cap sets it apart from a standard diaphragm design, pulling heat away from the actuator during long pulls or sustained high-boost runs where thermal fatigue would otherwise shorten a wastegate's life.

Built with a cast stainless steel base and V-band connections for a secure, leak-resistant seal, it's rated for serious power across LS, Coyote, HEMI, diesel, and high-boost import platforms - a solid external wastegate choice for street, strip, and competition turbo setups that need dependable boost control under real load.