This is critical in high-performance applications where even minor inconsistencies can lead to significant performance drops

guaranteeing seamless compatibility with your engine

5 mm Exhaust Valves

improved fuel efficiency

- Applicable for BMW engines S85B50

BMW M52 Piston Set by Arias ZF-1101-471-029 This is critical in high-performanceArias Forged Pistons for BMW M52 84. 5mm Bore, 9: 1 Compression Mixing Power & Affordability Arias Pistons, backed by 55 years of high performance piston engineering experience, now offers a piston set for the BMW M52 platform. Manufactured from Arias forgings in the CP Carrillo facility in California, USA, these 84. 5mm bore, 9: 1 compression forged pistons offer race proven durability and precision machining at a competitive price. Arias Forged