ZRP standard intake valves for the 2.7-litre 30-valve APB turbo engine in the Audi S4 B5. They are intended to replace the original intake valves when rebuilding or upgrading the cylinder head.
The valves feature a black nitride surface and are manufactured in a standard design for the Audi S4 2.7L 30v Turbo engine.
- Engine: 2.7L 30v Turbo
- Engine code: APB
- Design: standard, intake valves
- Finish: black nitriding
- Dimensions: 26.90 mm / 5.96 mm / 105.10 mm
Suitable for: Audi S4 III (B5).

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