Manley 11171-8 - Race Master Exhaust Valves Subaru EJ20 / EJ25 - 33mm

Manley's Race Master Stainless Exhaust Valves for the Subaru EJ20 / EJ25 feature Chrome Stems, Hardened Tips, Fully Machined Surfaces and Swirl Polished Radii. These Valves are made from XH-426 Stainless Exhaust Material and are designed to handle additional heat from High Performance Street applications. 

Part Number	11171-8
Type	Exhaust
Head Diameter	33mm / +1mm
Stem Diameter	5.96mm / .2345"
Installed Height	Stock
Overall Length	104.75mm
Tip Length	3.5mm
Underhead Angle / Radius	25° x 11/32"
Margin	.060"
Seat Width	.080"
Top of Head	20° Dish