Manley 2004 + Subaru WRX STi (EJ257) 83mm Stroker 99.75mm +0.25mm Bore 9.8:1 Dish Piston Set with Rings

Part #: man622102C-4

Vehicle Fitment:
Subaru EJ257
2006-2014 WRX
2004-2021 STi

Manley Platinum Pistons are forged from 2618 high strength material, lightweight design with offset wrist pin designed for quiet start-ups. They have a pressure balance groove. 2.500" x .180" wall premium chrome moly pin, Steel top ring sets, and round wire locks are included.
Note: Recommended piston clearance: .003" for mildly boosted and .0035" got highly boosted measured .850" and 1.100" from the bottom of the oil ring

Manley Platinum Series Pistons:
• Moly Coated Skirts
• 2618 high strength material
• Lightweight design with offset wrist pin for quiet start-ups
• Pressure balance groove
• Will accommodate +1mm valve sizes
• Premium Steel top rings with Napier second ring
• Higher tension oil rings for improved oil control
• Round wire locks included
• Recommended piston clearance: .003" for mildly boosted and .0035" for highly boosted
measured .850" (79/83mm stroke) and 1.100" (75mm stroke) from the bottom of the oil ring