Specifically designed to fit Subaru crankshaft sprocket bolt; Designed for use with a 1″ socket or wrench; Impact rated; Applications: 02-07 Subaru Impreza WRX STI (exhaust cams only); 02+ Subaru Impreza WRX (06+ WRX exhaust cams only); 04-08 Subaru Forester XT (exhaust cams only); 05-10 Subaru Legacy GT (exhaust cams only); 05-10 Subaru Outback XT (exhaust cams only); 05-06 Saab 9-2X; 04-06 Subaru Baja; 04+ Subaru Impreza WRX STI (intake cams only) *Includes JDM Ver.9 STI; 06-14 Subaru Impreza WRX (intake cams only); 04-11 Subaru Forester XT (intake cams only); 05-10 Subaru Legacy GT (intake cams only); 05-10 Subaru Outback XT (intake cams only); 04-06 Subaru Baja Turbo (intake cams only); 06 Saab 9-2X Aero (intake cams only)