Outfront Motorsports CNC Ported 975 Racer D25 Cylinder Head Package Case Bolts The casting has features milled

The casting has features milled into it that assure that the primary tubes fit VERY concentric every time

It uses a Subaru wiring harness connector

tool steel wrist pins

Link G4X and G4+ Xtreme

Idle valve solenoid or stepper motor control

Outfront Motorsports CNC Ported 975 Racer D25 Cylinder Head Package Case Bolts The casting has features milledThe 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