Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings 1978-porsche-930-esi7271054 With CNC machined mount points

With CNC machined mount points

2007-2008 Porsche 911 GT3 2007-2008 Porsche 911 GT3 RS 1993-1994 Porsche 911 RS America 1989

Two clear sight windows allow for hassle-free filter inspection

Series 2 or Infinity ECUs

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

Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings 1978-porsche-930-esi7271054 With CNC machined mount pointsOur 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.