Want to modify or upgrade your 2008-2014 Subaru Impreza WRX STI with aftermarket forged pistons? At OGTuners.com we have a great selection of aftermarket performance parts for your Subaru Impreza. We have 15 forged pistons parts available in our store with free shipping to the Continental US.
Manley Performance Single Pistons
 $175.35 612000C-1Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 8.5:1 Dish Piston (Single Piston) IN STOCK (4) SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2011 Subaru Impreza WRX STI |
 $175.35 612002C-1Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.75mm +.25mm Bore 8.5:1 Dish SINGLE PISTON AND RING IN STOCK (1) - LOW SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2011 Subaru Impreza WRX STI |
 $175.35 612005C-1Manley 04+ Subaru WRX STi (EJ257) STD Stroke 100mm +.5mm Bore 8.5:1 Dish Single Piston with Rings IN STOCK (2) - LOW SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2011 Subaru Impreza WRX STI |
 $175.35 612100C-1Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.5mm STD Bore 9.8:1 Dish Piston (Single Piston) IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2011 Subaru Impreza WRX STI |
 $175.35 612102C-1Manley 04+ Subaru WRX STi (EJ257) STD Stroke 99.75mm +.25mm Bore 9.8:1 Dish Piston - Single IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2011 Subaru Impreza WRX STI |
 $200.43 621002C-1Manley Subaru WRX STI 2.5L EJ257 99.75 Mm Bore 1.285 In. CH 18.00 CC Dish Piston (Single) IN STOCK (1) - LOW SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2011 Subaru Impreza WRX STI |
 $175.35 621005C-1Manley 04+ Subaru WRX STi (EJ257) 75mm DE-STROKED 100mm +.5mm Bore 8.5:1 Dish Piston (SINGLE Piston) IN STOCK (4) SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2012 Subaru Impreza WRX STI |
 $175.35 621100C-1Manley 04+ Subaru WRX STi (EJ257) 75mm DE-STROKED 99.5mm STD Bore 9.8:1 Dish Piston Set with Rings IN STOCK (1) - LOW SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2011 Subaru Impreza WRX STI |
 $175.35 622000C-1Manley Subaru WRX STi (EJ257) 99.5mm Bore STD Size 8.5 CR 83mm Stroke Piston w/Ring *SINGLE ONLY* IN STOCK (1) - LOW SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2011 Subaru Impreza WRX STI |
 $175.35 622002C-1Manley Subaru WRX STI 26cc Dish Piston (Single Piston) IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2011 Subaru Impreza WRX STI |
Wiseco Single Pistons
 $201.99 6588m92Wiseco Subaru WRX 4V R/Dome 8.4:1 Cr 92mm Piston Shelf Stock OUT OF STOCK 2004-2011 Subaru Impreza WRX STI |
 $201.99 6588m925Wiseco Subaru WRX 4V R/Dome 8.4:1 Cr 92.5 Piston Shelf Stock OUT OF STOCK 2004-2011 Subaru Impreza WRX STI |
 $201.99 6588m93Wiseco Subaru WRX 4v R/Dome 8.4:1 CR 93mm Piston Shelf Stock OUT OF STOCK 2004-2011 Subaru Impreza WRX STI |
 $201.99 6598M100Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 100mm Piston Shelf Stock OUT OF STOCK 2004-2012 Subaru Impreza WRX STI |
 $201.99 6598M995Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 99.5 Piston Shelf Stock OUT OF STOCK 2004-2012 Subaru Impreza WRX STI |