Supertech Black Nitrided Intake Valve - +1mm Oversize - Set of 24 | 2003-2009 Audi S4 (AIVN-1206S-24)
Supertech
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Audi BHK/BHF 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: 27.90mm (+1)
- Material: Stainless Steel 21-4N
- Groove Type: Single Groove
- Length: 96.55mm
- Stem Diam: 5.96mm
- 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
- 2003-2009 Audi S4
- 2007-2010 Volkswagen Touareg
What's In The Box?
- 24 - 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.
