Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings 1978-porsche-930-esi7271054 2 Cayman/Boxster PDK:

2 Cayman/Boxster PDK:

Two clear sight windows allow for hassle-free filter inspection

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

Aluminium Push Lok 6AN hose ends

Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings 1978-porsche-930-esi7271054 2 Cayman/Boxster PDK:Our 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.