Features 1. Makes it easy to replace valve stem seals, valves, springs, and retainers; practical to use. 2. Will not slide or damage the cylinder head like a general-purpose clamp compressor. 3. Compresses valve springs with the head on the bench or on the engine in the vehicle. 4. Ball thrust bearings allow smooth operation even with upgraded valve springs. 5. Designed for use with Impreza WRX and WRX STI models equipped with 2.0L or 2.5L DOHC Turbo engines from 2002 onwards. Specification Item Type: Valve Spring Compressor Tool Material: Metal Fitment: - 2002+ Impreza WRX and WRX STI with 2.0L or 2.5L DOHC Turbo engines (EJ205, EJ207, EJ255, EJ257) - 20042011 Forester XT with DOHC Turbo engines - 20052010 Legacy GT with DOHC Turbo engines - 20052010 Outback XT with DOHC Turbo engines - 20052006 Saab 9-2X Aero with DOHC Turbo engines - 20042006 Baja with DOHC Turbo engines - 19961998 2.5L DOHC Phase 1 Naturally Aspirated engines Package List 1 x Clamp 1 x Screw 1 x Sleeve