Gen4 Comp-Gate40 40mm External Wastegate, 7 PSI [Black]

Name: Gen4 Comp-Gate40 40mm External Wastegate, 7 PSI [Black]
Brand: TURBOSMART
SKU: 911-TS-0505-1006
Price: 359.99 USD
Availability: InStock

Color:

^$359⁹⁹

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Ships on Sep 21, 2026

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Comp-Gate40 External Wastegate

7 psi Spring Pressure

Gen4 Comp-Gate40 40mm External Wastegate for Tight Engine Bays

V-Band inlet and outlet for 40 mm peer fitment

Adjustable from 3 to 26 psi with alternate springs

Stainless steel cast body and aluminum actuator housing

Sold Individually

The Gen4 Comp-Gate40 is built for engine bays where space is tight but flow and heat handling still matter. Its compact V-Band design and unique locking collar make installation and boost control straightforward.

Turbosmart TS-0505-1006 Gen4 Comp-Gate40 External Wastegate Features:

V-Band inlet and outlet to suit 40 mm peer fitment
Unique locking collar design
Stainless steel cast body and aluminum actuator housing
Adjustable from 3 to 26 psi with alternate springs
Solid piece stainless steel valve
High-temp silicone Nomex diaphragm
Twin 1/16 in. NPT reference ports
7 psi spring installed, Black finish

Comp-Gate40 External Wastegate
Turbosmart's Comp-Gate40 (40mm) external wastegate was designed to fit into tight engine bays while still offering superior flow and heat handling capabilities. The revolutionary actuator housing is 25% smaller than previous designs and allows for easy spring changes (from 3 psi to 26 psi available) with their locking cap design and gives the ability to index the cap orientation in twelve different positions. Features Solid One-Piece Coated Stainless Steel Valve and Silicon Nomex Diaphragm for true reliability and performance.
Supplied with: Inlet and Outlet Stainless Weld Flanges, Inlet and Outlet V-Band Clamps, 1/16'' NPT Hose Barbs (5mm), 1/16'' NPT Port Blanking Plugs, Locking Collar Tool, Valve Seat, 7 psi or 14 psi Spring (installed).

Features:

40mm Valve Size
V-Band Clamp Mounting System to Suit 1-3/4'' O.D. pipe
Locking Collar for Compact Size and Easy Spring Changes

Comp-Gate40HP External Wastegate
The highest pressure external wastegate of its kind in the world. The Turbosmart Comp-Gate40HP (40mm) External Wastegate retains the compactness and lightness synonymous with Turbosmart wastegates with the added bonus of being capable of handling high boost pressures. Only 28mm taller than the standard Comp-Gate40 these wastegates are available in base pressures from 10 psi to 40 psi and include our proven solid 1 piece coated stainless steel valve and high temperature tolerant silicon Nomex Diaphragm for proven performance and reliability.
Supplied With: Inlet and Outlet Stainless Weld Flanges, Inlet and Outlet V-Band Clamps, 1/16'' NPT Hose Barbs (5mm), 1/16'' NPT Port Blanking Plugs, Locking Collar Tool, Valve Seat, Brown/Orange 10 psi Inner Spring and Brown/Green 25 psi Outer Spring (installed).
Features:
40mm Valve Size
V-Band Clamp Mounting System to Suit 1-3/4'' O.D. pipe
Locking Collar for Compact Size and Easy Spring Changes
35 psi standard, 40 psi optional
Only 28mm taller than standard Comp-Gate40 wastegate

The most common reason for investing in an external wastegate is fitting an after-market turbo or better control of the boost and consequently the power output of your engine. Additionally, most large frame turbochargers are not equipped with internal wastegate systems. Most tuners will recommend an external wastegate for any engine producing 400hp or more, as running high boost through a factory internal wastegate can overpower the actuator spring, limiting maximum boost level. Aftermarket external wastegates feature bigger inlet and outlet ports, higher pressure springs and bigger actuator diaphragms to effectively control high boost pressure. Turbosmart wastegates offer superior flow path and high temperature resistance. They are designed and manufactured using the latest technologies. Turbosmart wastegates are market leaders in their sectors, outperforming and outlasting the competition.