Manley Performance Platinum Series Piston Single 99.75mm Bore 9.80:1 2004-2021 STI Aeromotive-InStock Compatible with a stock grade

Compatible with a stock grade #W 40

Shop now to give your engine bay the premium finish it deserves

By the time your factory idiot light comes on the damage is already done

75mm FSR 2618 custom pistons treated with electroless nickel-plating for detonation resistance and heat reflection

Manley Performance Platinum Series Piston Single 99.75mm Bore 9.80:1 2004-2021 STI Aeromotive-InStock Compatible with a stock gradeOur signature Platinum Series pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability. 2618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance. Chrome Moly Wrist Pins: Premium Chrome Moly wrist