Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings 612000CB-1 Exhausts_Exhaust Manifolds The RCM 14mm Superstud Head

The RCM 14mm Superstud Head Stud kit provides this peace of mind

Supertech Nissan SR20DET Exhaust Valve Guide 7mm Stem - Set of 8

Individual cylinder spark timing variation based on speed and load (up to 256 fields) if cam sync present

reliability and precision

Manley 04+ WRX STi (EJ257) Size (STD) Stroke (79mm) Bore (99.50mm Grade B) SINGLE Piston w/ Rings 612000CB-1 Exhausts_Exhaust Manifolds The RCM 14mm Superstud HeadOur 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. SKU: 612000CB 1