Turbosmart TS-0552-1015 WG40 GenV CompGate40 14PSI Sleeper Universal

Vehicle Fitment

• Universal - Fits most turbocharged engines with external wastegate ports (not vehicle specific)

Features

• WG40 GenV CompGate40 external wastegate optimized for high flow
• 14 psi pre-installed sleeper spring for stealth boost tuning
• Mechanical diaphragm actuator with 360° adjustable orientation
• Collar-locking system simplifies spring swaps and actuator adjustments
• Strap-type V-band inlet/outlet connections for secure sealing
• Optional liquid actuator cooling provisions
• Multiple reference ports for flexible hose routing
• Direct upgrade for previous Gen4 40 mm CompGate wastegates

Specifications

• Part Number: TS-0552-1015
• Valve Size: 40 mm diameter wastegate
• Installed Spring: 14 psi sleeper spring
• Actuator Type: Mechanical diaphragm
• Connection Type: Strap-type V-band inlet/outlet
• Body Material: High-temperature stainless steel
• Valve Guide Material: Nitronic60
• Reference Ports: 1/8" NPT
• Actuator Orientation: 360° adjustable

Included Components

• 1x WG40 GenV CompGate40 external wastegate (pre-assembled with 14 psi spring)
• 1x SS316 internal valve seat
• 1x inlet V-band clamp
• 1x inlet SS304 weld flange
• 1x outlet V-band clamp
• 1x outlet SS304 weld flange
• 1x collar tool (master/slave)
• 4x 1/8" NPT plugs (1x installed)
• 2x 1/8" NPT nipples
• 1x spring kit: 3 psi, 5 psi, 7 psi, 14 psi
• 1x Turbosmart decal

Product Description

The Turbosmart TS-0552-1015 WG40 GenV CompGate40 14PSI Sleeper external wastegate is a universal high-performance solution engineered for turbocharged engines requiring precise boost control. The pre-installed 14 psi sleeper spring provides stealthy boost tuning while maintaining optimal flow and thermal performance. Its universal compatibility allows it to be installed on most turbo systems with an external wastegate port, making it perfect for custom and aftermarket builds.

Featuring a 40 mm valve and a mechanical diaphragm actuator with 360° adjustable orientation, the TS-0552-1015 offers installation flexibility in tight engine bays. The innovative collar-locking system simplifies spring swaps and allows precise tuning of boost levels. Complete with a spring kit, robust strap-type V-band connections, and optional actuator cooling provisions, this wastegate delivers reliable, stealthy, and versatile performance for enthusiasts, tuners, and race teams alike.