RCM / OMEGA Low Expansion Piston Set – WRX & STI 2006+ (V9+) EJ25
£959.99
Low expansion forged piston set manufactured by Omega Pistons for the EJ25 engine in WRX/STI models from 2006 onward (V9+). Supplied in standard bore plus 0.25mm and 0.50mm 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 2006-2007 (GD/GG Hawkeye), Subaru Impreza / WRX STI 2008-2013 (GR/GV), Subaru WRX STI 2014-2021 (VA/VAB), Subaru WRX 2021+ (VB)
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, low-expansion piston set manufactured by Omega Pistons for the Subaru EJ25 engine, as fitted to WRX and STI models from 2006 onward (V9+).
Omega state the low-expansion material is intended to reduce piston noise on a cold start. Pistons are forged rather than machined from a solid billet, and each 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 standard bore, plus 0.25mm and 0.50mm oversize. Please contact Scooby Upgrades to confirm compatibility with your exact vehicle and engine before ordering.