TiAL 002935 F38 38mm External Wastegate 2-Bolt Flange

The TiAL F38 is the classic 38mm external wastegate featuring a proven 2-bolt flanged inlet and outlet design. First introduced by TiAL in 2001, the F38 has decades of proven performance in both street and competition turbo applications. Its 38mm valve matches that of the MV-S, while its body stands approximately one inch taller, allowing for flexible exhaust manifold integration.

Key Features:

• 38mm valve — same bore diameter as the TiAL MV-S wastegate
• High-temp NiCrFe alloy valve and 347 stainless steel valve housing for extended service life and superior wear resistance
• Nitronic 60 stainless steel valve seat and valve bushing for enhanced galling and corrosion resistance
• 17-7 PH stainless steel actuator spring — maintains consistent boost pressure at elevated temperatures up to 900°F (483°C)
• High-temperature silicone Nomex-reinforced actuator diaphragm for rock-solid boost stability
• CNC-machined 6061-T651 billet aluminum actuator housing — lightweight and color anodized
• All stainless steel hardware throughout
• Spring base pressures from 3.626 to 23.206 PSI (0.25 to 1.60 BAR) — higher pressures achieved by combining two springs
• 2-bolt flanged design on both inlet and outlet — replaces the legacy F35 model
• Compatible with 304L or 1018 mating weld flanges (sold separately)
• Made in the USA

The F38 is available with a color anodized actuator housing in silver or black. Its combination of high-temperature alloys, proven diaphragm design, and versatile spring pressure range makes it suitable for both street-driven builds and dedicated race applications.