CNC-machined billet aluminum body with proprietary low-friction coatings for long service life and smooth operation

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is a favorite among enthusiasts for its low costs and tuning potential

Originally developed to bring modern control to port injection systems

Subaru EJ255 WRX - 79 mm Stroke

BMW S14 Piston Set by Arias 630CSi CNC-machined billet aluminum body withArias Forged Pistons for BMW S14B23 94mm Bore, 11: 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 S14 platform. Manufactured from Arias forgings in the CP Carrillo facility in California, USA, these 94mm bore, 11: 1 compression forged pistons offer race proven durability and precision machining at a competitive price. Arias Forged