Manley 83mm Stroker 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings - 2004-2021 Subaru STi (EJ257) PDM_turbochargers-and-superchargers 10W30 and 5W30

10W30 and 5W30

(1) SAE quick disconnect

especially turbocharged cars on E85 or running aggressive boost

Polyurethane Over OEM Rubber

IAG's Big Bore 76mm Throttle Body package includes a 76mm bore throttle body (silver finish only)

Manley 83mm Stroker 99.5mm STD Bore 8.5:1 Dish Piston Set with Rings - 2004-2021 Subaru STi (EJ257) PDM_turbochargers-and-superchargers 10W30 and 5W302618 Alloy Forgings: We use domestic 2618 alloy forgings, ensuring superior strength and performance. Chrome Moly Wrist Pins: Premium Chrome Moly wrist pins come standard with our Standard Series Pistons. For select SKUs, we offer wrist pin upgrades to 9310 and Turbo Tuff DLC alloys, providing additional durability. Exacting Ring Lands and Grooves: We adhere to strict standards for piston ring lands and grooves, resulting in enhanced ring seal and