Outfront Motorsports 575 Complete Cylinder Head Package D25 Heads EJ Timing Components 321 stainless steel conducts less

321 stainless steel conducts less heat than 304 stainless steel

The Ethanol Content Sensor measures the ratio of ethanol to petrol in a flex fuel vehicle

Max Lift: 13

modifications to engine bay required for fitment

Outfront Motorsports 575 Complete Cylinder Head Package D25 Heads EJ Timing Components 321 stainless steel conducts lessThe 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 you 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