Supertech Black Nitride Intake Valves - Set of 12 | Multiple BMW Fitments (BMIVN-1040S-LC-12)

BMW S54B32 Black Nitride Intake Valves by Supertech Supertech intake valves are made exclusively from an enhanced versions of EV8 (21-4N) steel. This is the highest grade of steel available and provides the strength to withstand just about any application. Features Head Diam: 35.00mm Material: Stainless Steel 21-4N Groove Type: Single Groove Length: 117.50mm Stem Diam: 5.97mm Magnetic friction welded wafer, Hardened to 52 HRC min One piece forged valve (non-magnetic) Black Nitride for superior hardness keeping core ductility Back-cut angle “Superfinish” valve stem with a surface roughness of about 1/3 of a regular valve Undercut stem Benefits Improves durability and reduces carbon build up Less Friction Better Flow Rates Better Sealing Please Note: Use w/Lash Caps Applications 2000–2006 BMW E46 M3 2000–2002 BMW E36/7 Z3 M Roadster, E36/8 M Coupé 2006–2008 BMW E85 Z4 M Roadster, E86 Z4 M Coupé What's In The Box? 12 - Intake 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.