TiAL 003835 MV-S 38mm External Wastegate with V-Band Flanges

The TiAL MV-S 38mm External Wastegate is a ultra-compact, high-performance external wastegate engineered for precision boost control in demanding turbocharged applications. At just 3.7 inches tall, it offers a significantly smaller footprint than its F38 predecessor while delivering the same trusted TiAL reliability and flow capacity.

The MV-S features a V-Band inlet and outlet design that simplifies installation and fabrication, with all mating flanges and clamps included in the box. Five total air ports — three lower and two upper — eliminate the need to rotate the actuator top during setup. Simply connect to the most convenient port and plug the remaining ones with the included port plugs.

Key Features:

• Ultra-compact design: Stands only 3.7" tall — the most compact 38mm external wastegate available
• V-Band connections: Inlet and outlet V-Band flanges with stainless steel clamps included for leak-free, tool-friendly installation
• High-temp alloy valve & housing: NiCrFe-based alloy valve and 347 stainless steel housing for exceptional corrosion, wear, and galling resistance
• Nomex-reinforced diaphragm: High-temperature silicone Nomex-reinforced actuator diaphragm for long-lasting reliability
• 17-7 PH Stainless Steel springs: Actuator springs resist relaxation at temperatures up to 900°F (483°C) for consistent pressure delivery
• Nitronic 60 stainless steel: Used for the valve seat and valve bushing for superior durability
• 5 air ports: Three lower and two upper M10 x 1.0 threaded ports for flexible boost and pressure controller hookup; plugs included for unused ports
• Integrated -4AN water cooling ports: Two M8 x 1.0 threaded water ports allow coolant to circulate through the actuator top for extreme-duty use including road racing, rotary applications, and low-airflow engine bays
• CNC-machined billet aluminum actuator: Lightweight construction with color anodized finish options (Silver, Red, Blue, Purple, Black)
• 304L stainless steel mating flanges: Chamfered and counterbored edges for easier welding
• Full spring set included: All actuator springs included, covering a pressure range from 4.35 psi (0.3 bar) up to 24.66 psi (1.7 bar)
• All stainless steel hardware throughout

• MV-S Wastegate Assembly
• MV-S Valve Seat
• Inlet V-Band Flange & Clamp
• Outlet V-Band Flange & Clamp
• 2x TiAL -4AN Removable Water Fittings
• 2x TiAL Air Fittings
• Plugs for unused air ports

The TiAL MV-S is the ideal external wastegate for performance builds where space is at a premium and boost control precision is non-negotiable. The integrated water cooling ports are factory leak-tested and fully removable if not needed for your application.