The Street-Prepped heads have been daily driven to and from the race track and then proven on the race track for ultimate performance. Designed to give you the potential from various short block options without sacrificing drivability around town and in traffic.

Brand new USDM Impreza WRX STi heads. Heads are professionally hand assembled with the following high performance parts.

- Stainless Steel Intake Valves
- Lightweight Sodium Filled Exhaust Valves
- Steel Retainers and High Performance Valve Springs