Outfront Motorsports CNC Ported 975 Racer B25 Cylinder Head Package Oiling we realize they are not

we realize they are not for everyone

Technical SpecsThe pinout is indicated on the sensor itself (from left to right looking into connector on sensor) as :1

When it comes to improving on an OEM design

Enlarged inlet with anti-funneling geometry

Made from precision cast aluminum

Outfront Motorsports CNC Ported 975 Racer B25 Cylinder Head Package Oiling we realize they are notThe Outfront Motorsports 975 CNC Ported Cylinder Heads are the perfect performance head upgrade for competition and racing. These heads are a great option for the racer with engines up to 975 BHP. These are a great option for drag racing, time attack, hill climb or other competitive racing. The Outfront 975 Heads start with new OEM Genuine Subaru head castings. They are then CNC ported to have a big upgrade in flow. A multi angle valve job is