TiAL 003880 MV-R External Wastegate V-Band - 44mm

The TiAL MV-R 44mm external wastegate is engineered for precision boost control in high-performance turbocharged applications. With an ultra-compact design measuring only 4.17 inches high, the MV-R fits in tighter spaces than any competing 44mm or 46mm wastegate on the market, making it ideal for space-constrained engine bays.

Advanced Port Configuration:

The MV-R features two top air ports and three bottom air ports for versatile installation without needing to rotate the actuator housing. This five-port design allows for optimal boost control configuration, and TiAL includes plugs for any unused ports. The unit is a direct bolt-on replacement for the legacy TiAL V44 wastegate.

Premium Construction:

• High-temperature NiCrFe-based alloy valve with 347 stainless steel valve housing for extended durability
• Nitronic 60 stainless steel valve seat and bushing for superior wear resistance
• High-temperature silicone Nomex reinforced actuator diaphragm
• 17-7 PH stainless steel actuator spring maintains consistent pressure up to 900°F (483°C)
• CNC machined 6061-T651 aluminum actuator housing with color anodized finish
• All stainless steel hardware and 304L stainless steel mating weld flanges

Water Cooling System:

The MV-R includes integrated -4AN water cooling ports that cycle coolant through the actuator top to maintain lower temperatures during extreme conditions such as road racing, rotary applications, or installations with limited airflow. This patent-pending system uses minimal coolant and has negligible impact on the overall cooling system.

Complete Installation Kit Includes:

• MV-R wastegate assembly with valve seat
• V-band inlet and outlet flanges with clamps (chamfered and counterbored for easy welding)
• CNC machined stainless steel air fittings and -4AN water fittings
• Plugs for unused air ports
• Complete spring set for boost pressures from 4.35 PSI (0.3 bar) to 24.66 PSI (1.7 bar)

The TiAL MV-R wastegate is optimized with an ideal actuator-to-valve area ratio for maximum control and wide dynamic flow capacity, making it one of the most trusted external wastegates in motorsport applications from Formula Drift to World Time Attack.