612201C-4 Manley Pistons EJ257 for 06-14 WRX / 04+ STi Pressure Gauge See more Manley Pistons for

See more Manley Pistons for the EJ205 WRX

Front Pipe

they can look it up by VIN

The AOS is constructed of three CNC machined sections that screw together and are sealed with o-rings

612201C-4 Manley Pistons EJ257 for 06-14 WRX / 04+ STi Pressure Gauge See more Manley Pistons forManley Pistons for the EJ257 motor in the 2006 2014 WRX and 2004+ STi models includes a full set of 4 pistons, wrist pins, ring sets and round wire locks. See more Manley Pistons for the EJ257 WRX & STi. Vehicle Fitment: Subaru EJ257 2006 2014 WRX 2004 2021 STi Piston Specs: Part Number: 612201C4 Pin: Standard . 180" Wall Bore Size: 99. 55mm (+. 05) Rod Length: 5. 137" Stroke: 79mm Standard Stroke (2. 5L) Comp Distance: 1. 209" Dome Volume: 17 cc