622105C-4 Manley Pistons EJ257 for 06-14 WRX / 04+ STi Hawk Performance as the air to fuel

as the air to fuel ratio remains nearly identical to the factory's

PERRIN's Front License Plate Relocate attaches to the bumper through the front tow hook cutout on your Subaru

Rotors: Fitment: Part Number: Front Pair 2004-2017 STi D1-007 Front Pair 2018-2021 STi D1-185 Rear Pair 2004-2017 STi D2-007

GSC Power-Division Super Alloy Exhaust Valves for 4G63T are for those running high horsepower

These allow your coilover springs to smoothly rotate around the perch under compression enabling spring load to be more evenly distributed easing the pre-load and reducing the noise created under spring compression

622105C-4 Manley Pistons EJ257 for 06-14 WRX / 04+ STi Hawk Performance as the air to fuelManley 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: 622105C4 Pin: Standard . 180" Wall Bore Size: 100mm (+. 5) Rod Length: 5. 137" Stroke: 83mm Stroker (2. 7L) Comp Distance: 1. 130" Dome Volume: 14 cc Cylinder Head cc: