Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings.
This listing is for ONE brand new Manley Piston 99.5mm Grade B - "True Drop In"- 79mm stroke - 5.137 rod length - 8.5:1 compression. This also includes (STD)premium chrome moly wrist pin and round wire locks. This listing is only for 1 Piston with rings, pin, and locks, please adjust quantity appropriately.
Note: Includes premium chrome moly wrist pin and round wire locks.
Car Make: Subaru
Car Model: Impreza WRX / WRX STi
Years: 2004-2018 STi / 2006-2014 (WRX)
Engine: EJ255 / EJ257
Included Ring Set: 46995DT-1
Compression Ratio: 8.5:1 WRX / 8.0:1 STi
Face Type: Dish
Dome CC: -22cc
Head CC: 51 cc
Gram Weight: 395 g
Pin Size: 23mm
Compression Height: 1.209
Rod Length: 5.137
Stroke: 3.110
Bore: 99.50mm
Material: 2618
Bore Size: Grade B
Standard Pin (Included): 42346
Car Make: Subaru
Car Model: Impreza WRX / WRX STi
Years: 2004-2018 STi / 2006-2014 (WRX)
Engine: EJ255 / EJ257
Included Ring Set: 46995DT-1
Compression Ratio: 8.5:1 WRX / 8.0:1 STi
Face Type: Dish
Dome CC: -22cc
Head CC: 51 cc
Gram Weight: 395 g
Pin Size: 23mm
Compression Height: 1.209
Rod Length: 5.137
Stroke: 3.110
Bore: 99.50mm
Material: 2618
Bore Size: Grade B
Standard Pin (Included): 42346
- 2618 high strength material; Lightweight design with offset wrist pin for quiet start-ups
- .180" x 2.500" wall Premium Chrome Moly pin included P/N 42346
- 9310 alloy .210" wall pin upgrades available P/N 42546
- Pressure balance groove
- Will accommodate +1mm valve sizes
- Premium Steel top ring sets and round wire locks included
- Recommended piston clearance: .003" for mildly boosted and .0035" for highly boosted measured 1.100" from the bottom of the oil ring.
Fits Subaru: STi (2004-2019)
Subaru: WRX (2006-2014)
Subaru: WRX (2006-2014)