Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings 1978-porsche-930-esi7271054 fully balanced and runout tested

fully balanced and runout tested for smooth braking

NRG Reinforced Steering Wheel (320mm) Blk w/Blue Trim

so the engineers at Injen Technology needed to design an intake that packed a serious punch to keep up with this athletic and sophisticated performer

Series 2 or Infinity ECUs

With CNC machined mount points

Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings 1978-porsche-930-esi7271054 fully balanced and runout testedOur signature "Platinum Series" pistons feature 2618 alloy forgings, proven cam and barrel skirt profiles, tool steel wrist pins, and moly skirt coatings on select part numbers. Join the ranks of professional engine builders and tuners who rely on Manley pistons for superior performance and durability.