TiAL 003794 MV-S 38mm External Wastegate

The TiAL MV-S 38mm External Wastegate is a compact, high-performance boost control solution designed for turbocharged performance applications. At just 3.7 inches in height, the MV-S is significantly more compact than its F38 predecessor while retaining the precision boost control TiAL is renowned for.

The MV-S features V-band clamp flanges on both the inlet and outlet, making installation and removal quick, clean, and straightforward compared to traditional bolt-flange designs. With three lower air ports and two upper air ports, the MV-S offers flexible pneumatic actuator line routing to suit virtually any engine bay layout.

Key Features:

• 38mm valve diameter for efficient exhaust gas bypass
• Compact 3.7" overall height — smaller footprint than the F38
• V-band flange inlet and outlet for tool-friendly installation and removal
• Five total air ports (3 lower, 2 upper) for versatile boost reference line routing
• Precision-machined stainless steel construction for heat and corrosion resistance
• Available in multiple spring pressure ratings to match target boost levels
• Interchangeable springs allow boost pressure adjustments without replacing the unit
• TiAL's proven poppet-style valve design for consistent, repeatable boost control

The TiAL MV-S wastegate is engineered for enthusiasts and professional tuners who demand reliable, accurate boost control in a compact package. Its V-band design and multi-port actuator configuration make it a versatile choice for custom turbo builds, keeping the installation clean and the boost curve precise.