Supertech Black Nitrided Exhaust Valve - +0.5mm Oversize - Single | Multiple Subaru Fitments (SEVN-1012/2)

Subaru EJ20/EJ25 Black Nitride Exhaust Valve by Supertech

Supertech exhaust valves are made from EV16 (21-8N) or EV8-Nb/w for greater strength at higher temperatures.

Features

• Head Diam: 32.50mm (+0.5)
• Stem Diam: 5.96mm
• Length: 104.20mm (short)
• Back-cut angle
• Undercut stem
• One piece forged valve (non-magnetic)
• Magnetic friction welded wafer, Hardened to 52 HRC min
• Black Nitride for superior hardness keeping core ductility
• “Superfinish” valve stem with a surface roughness of about 1/3 of a regular valve

Benefits

• Less Friction
• Better Flow Rates
• Better Sealing
• Improves durability and reduces carbon build up

Applications

• 2004-2006 Subaru Baja
• 2004-2013 Subaru Forester
• 2002-2022 Subaru WRX
• 2005-2012 Subaru Legacy
• 2005-2009 Subaru Outback

What's In The Box?

• 1 - Exhaust Valve

Warranty

• Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.