Subaru Engine Services

Quantum Performance offers multiple specialty services for rebuilding or upgrading the Subaru EJ and FA series engines and their accessories. Below are a few of the unique services we offer to compliment and improve these platforms, whether you are simply re-conditioning or building for more power.

• OEM or Upgraded Pre-Assembled Short-Block Options (Including our very own best selling Stage 2)
• Cylinder Head Reconditioning Service
• Over-Sized Valve Upgrades
• Aftermarket Cam Installation and Valve Lash
• CNC'd EJ20 to EJ25 Cylinder Head Chambering Service (For EJ25 block conversion)
• Breather Port Conversion Kit (For EJ25 block conversion)
• Porting and Polishing Services
• Oversized Head Stud Machining and Gasket Fitment
• CNC'd or Hand Polished OEM or Aftermarket TGV Delete Service
• AVCS Cam Gear Rebuilding and Strengthening Service (Including Exhaust Gears for the 2008-2018 STI's!)
• Cylinder 4 Cooling Passage Upgrade
• Fully Balanced Rotating Assembly (Including External Items)
• Stock Turbocharger Rebuilds or Upgrades
• VF Turbo Porting Service (To prevent boost creep)
• Stainless Steel Oil Lines (Turbo and Power Steering)
• Timing Guide and Cover Conversion Kits (For A/T WRX EJ25)
• Oil Pump Upgrade Options
• Oil pan, Pickup, and Windage tray options