Cobb Tuning Subaru 02-07 WRX 5MT w/ Factory Short Shift Stage 1 Drivetrain Package - 211X01EMISSIONS This part is not an emissions related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION The Stage 1 Drivetrain Package Includes: Subaru 5 Speed Front Shifter Bushing; Subaru Rear Shifter Bushing; 5 Speed Double Adjustable Short Throw Shifter. If your shifter fork width is 1. 155" (inches), you will need the Narrow Barrel Shifter. If your shifter fork width is 1. 435" (inches), you will need the Wide Barrel Shifter,