Supertech Black Nitride Exhaust Valves - Set of 8 | 1990-1995 BMW 318i (BMEVN-1030S-8)

BMW M42/S42 Black Nitride Exhaust Valves by Supertech

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

Features

• Head Diam: 30.50mm
• Material: Black Nitride
• Groove Type: Single Groove
• Length: 105.65mm
• Stem Diam: 5.95mm
• Size: Std
• 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

• 1989-1991 E30 318is
• 1990-1992 E30 318i
• 1992-1995 E36 318i
• 1991-1995 E36 318is
• 1994-1995 E36 318ti

What's In The Box?

• 8 - Exhaust Valves

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.