MANLEY PLATINUM SERIES Extreme Duty Piston [Bore Size mm 86.0 | Over Size STD | Rod Length 5.090" | Stroke mm 86 | Comp Distance 1.285" | Dome Volume (cc) -13 | Comp Ratio 10.0 | Piston Type Dish | Piston Wt/Gms 340] (2015-2020 Impreza WRX)

2618 high strength material; Lightweight design
2.250" x .150" wall Premium Chrome Moly pin (Standard Series) included P/N 42251
9310 alloy .210" wall pin (Extreme Duty Series) included P/N 42551
Pressure balance groove
Will accommodate +1mm valve sizes
Premium Steel top rings with Napier seconds and round wire locks included
Recommended piston clearance: .003" for mildly boosted and .0035" for highly boosted measured .850" from the bottom of the oil ring

These pistons feature skirt diameters that correspond to the OEM Grade A or B bores resulting in a piston to wall clearance range of .0023" - .0031". Check the bore grades on the top of your block and order the appropriate quantities of Grade A or B pistons. (Sold as -1 individual pieces, not sets.)

SUBARU WRX 2015-Up