TiAL 003867 MV-R 44mm External Wastegate V-Band with All Springs

The TiAL MV-R 44mm External Wastegate is the most compact external wastegate in its class, measuring only 4.17 inches tall — smaller than any competing 44mm or 46mm wastegate on the market. Designed for performance turbocharged builds where space is at a premium, the MV-R delivers precise, consistent boost control without compromise. It is a direct bolt-on replacement for the legacy TiAL V44 wastegate.

Key Features:

• Ultra-compact design at only 4.17" tall — fits in the tightest engine bays
• V-Band inlet and outlet connections for fast, leak-free installation
• Two top air ports and three bottom air ports eliminate the need to rotate the actuator housing during install
• Plugs included for all unused air ports
• Integrated -4 AN water cooling ports cycle coolant through the actuator top to manage temperatures under extreme conditions
• High-temp NiCrFe alloy valve with 347 stainless steel valve housing for superior corrosion, wear, and galling resistance
• High-temperature silicone Nomex-reinforced actuator diaphragm
• 17-7 PH stainless steel actuator spring for consistent pressure delivery at elevated temperatures
• Nitronic 60 stainless steel valve seat and valve bushing
• All stainless steel hardware throughout
• 304L stainless steel CNC-machined 12mm thick mating weld flanges with chamfered edges for easier welding
• CNC-machined 6061-T651 billet aluminum actuator, available in color anodized finishes: Silver, Red, Blue, Purple, or Black
• All seven actuator springs included — supports boost pressure from 4.35 psi (0.3 bar) up to 24.66 psi (1.7 bar)
• Made in the USA

What's Included:

• MV-R Wastegate Assembly
• Inlet V-Band Clamp & Flange
• Outlet V-Band Clamp & Flange
• CNC machined air fittings
• 2x TiAL -4 AN removable water cooling fittings
• Plugs for unused air ports
• All seven actuator springs

The TiAL MV-R is engineered for serious performance applications — from street builds to road racing and time attack — where reliable, tunable boost control is essential. Its V-Band connection system and comprehensive hardware kit make installation straightforward, while its all-stainless and high-temp alloy construction ensures long service life under demanding conditions.