632005C-4 Manley Turbo Tuff Pistons EJ257 for 06-14 WRX / 04+ STi Stoptech simply remove the factory bypass

simply remove the factory bypass valve and replace it with the Mach 2

Deatschwerks 650cc fuel injectors for the top-feed 2004-2014 WRX and 2007+ Subaru STi

465") Stock Stroke for 4G63 2034655900A6 94mm (3

• New OEM Mitsubishi Non-ABS Proportioning valve

Prolite flywheels are designed for best throttle response and acceleration

632005C-4 Manley Turbo Tuff Pistons EJ257 for 06-14 WRX / 04+ STi Stoptech simply remove the factory bypassManley 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: 632005C4 Pin: Standard . 180" Wall Bore Size: 100mm (+. 5) Rod Length: 5. 137" Stroke: 75mm De Stroked (2. 35L) Comp Distance: 1. 285" Dome Volume: 18 cc Cylinder Head