612005C-4 Manley Pistons EJ257 for 06-14 WRX / 04+ STi Rays Wheels The urethane bushings are less

The urethane bushings are less harsh and transmit less feedback into the cabin then the solid bushings

• As these motorsports grade carbon fiber parts are hand laid

NGK ignition coils are manufactured to OE standards for the highest durability and operational performance

Wilwood Dynapro single Calipers

• Tuning is REQUIRED after install

612005C-4 Manley Pistons EJ257 for 06-14 WRX / 04+ STi Rays Wheels The urethane bushings are lessManley 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: 612005C4 Pin: Standard . 180" Wall Bore Size: 100mm (+. 5) Rod Length: 5. 137" Stroke: 79mm Standard Stroke (2. 5L) Comp Distance: 1. 209" Dome Volume: 22 cc Cylinder