Outfront Motorsports 575 Entry Level Cylinder Head Package S20 Heads Forester 2003-2008 and N25 head castings

and N25 head castings

GSC Power-Division billet N1 camshafts for the EZ36 Engine with Exhaust AVCS deleted (Billet Adjustable Gears now available)

Increased durability and strength from stronger material

G4+ Force (CAN2)

Housing Bore: 55

Outfront Motorsports 575 Entry Level Cylinder Head Package S20 Heads Forester 2003-2008 and N25 head castingsThe Outfront Motorsports 575 Cylinder Heads are the perfect entry level replacement heads if you had a failure requiring you to completely replace heads or if you just want brand new heads outright. These heads are a great option for your basic bolt on engines up to 575 BHP. The Outfront 575 Heads start with new OEM Genuine Subaru head castings. A multi angle valve job is performed as well as a fresh resurface. The heads go through multiple cleaning