RCM / OMEGA Low Expansion Piston Set - WRX & STI 2006+ (V9+) EJ25 Engine_Cylinder Heads • Supplied with x12 ARP

• Supplied with x12 ARP 9/16" 8740 Chromoly 12pt nut

The plenum volume and runner length combination has been optimized for brutal low and mid range torque while increasing top end power aggressively

ensuring you are able to install to the correct torque figures accurately

Forester & Legacy models

RCM / OMEGA Low Expansion Piston Set - WRX & STI 2006+ (V9+) EJ25 Engine_Cylinder Heads • Supplied with x12 ARPRCM have always chosen Omega as their preferred piston manufacturer, not only because of their extensive experience within motorsport but also for the incredible accuracy and attention to detail that is applied to every aspect of their manufacturing. So why forged? A forging is still the best way to manufacture a piston, not just from a production point of view but for the strength of the piston. There are certain areas where a piston machined from