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

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

SPECS:

Bore: 99.55mm

Oversize: +.05mm

Rod length: 5.137"

Stroke: 79

Comp distance: 1.209"

Dome volume (cc): -22

Cyl head (cc): 51

Compression ratio: 8.5

Dish piston type

Piston weight: 395

Includes Total Seal piston rings

Includes wrist pins

Sold as a complete set of pistons

Manley 2004 - 2021 Subaru WRX STi (EJ257) STD Stroke 99.55mm +.05mm Bore 8.5:1 Dish Piston and Ring Set

Part #: man612001C-4

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