RCM / Omega Piston Set – JDM STI 2003+ (V9+) EJ20
£779.99
Forged piston set manufactured by Omega Pistons for the EJ20 engine in JDM-spec STI models from 2003 onward (V9+). Supplied in 92.00mm standard bore plus 92.25mm, 92.50mm and 93.00mm oversize.
SKU:
EKS Fitment Advice
EKS currently identifies this product as Needs Confirmation
Compatibility of any product, greatly depends on model + year + trim + mods. Most Subaru’s are in different states of tune, so please contact Rich, from EKS to get clarity before purchasing.
Potential Applications
Subaru Impreza 2003-2005 (GD/GG Blobeye), Subaru Impreza 2006-2007 (GD/GG Hawkeye), Subaru Impreza / WRX STI 2008-2013 (GR/GV), Subaru WRX STI 2014-2021 (VA/VAB)
Full List of EKS Fitment Evidence Types
For context, here are all categories of fitment according to EKS.
- Direct Fitment: means the product is currently listed as fitting the model/generation shown.
- Shared / Application Fitment: means the product may suit shared Subaru platforms, engines, turbos, drivetrains, brakes, cooling/intake setups or modified applications.
- Universal / Service Item: means the product is broadly useful for Subaru servicing, maintenance, workshop use or general ownership.
- Needs Confirmation: means the product appears relevant, but final fitment may depend on extra details.
Product Description
This is a forged piston set manufactured by Omega Pistons for the Subaru EJ20 engine, as fitted to JDM-spec STI models from 2003 onward (V9+).
Pistons are forged rather than machined from a solid billet, which Omega state gives a more consistent grain structure and added strength for high-load use. Each piston is individually weighed and batched, with a manufacturer-stated tolerance of within 0.5g per piston and no more than 2.0g deviation across a set of four.
Supplied in 92.00mm standard bore, plus 92.25mm, 92.50mm and 93.00mm oversize. Please contact Scooby Upgrades to confirm compatibility with your exact vehicle and engine before ordering.