612100C-4 Manley Pistons EJ257 for 06-14 WRX / 04+ STi Unitronic FP no longer offers the

FP no longer offers the porting options

2" in the front and 1" in the rear

• Fits FIC IS175 series injectors

Throttle Body Bore Size: Part Number: 70mm S90-MIT-270 74mm S90-MIT-274

612100C-4 Manley Pistons EJ257 for 06-14 WRX / 04+ STi Unitronic FP no longer offers theManley 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: 612100C4 Pin: Standard . 180" Wall Bore Size: 99. 5mm (Standard Bore) Rod Length: 5. 137" Stroke: 79mm Standard Stroke (2. 5L) Comp Distance: 1. 209" Dome Volume: 10