Reinforced rocker arms for M20. Cast rocker arm with a stronger design and thickening at the points where the factory rocker arm sometimes fails. These rocker arms are polished and shot peened and can be used for street or race engines. In both cases you are better off than oem.
From 2023 also allowed in the E30 cup DNRT
Price per piece.
Replaces part number: 11 33 1 271 429 (Cheaper and stronger!)
