Cobb 5MT Stage 1 Drivetrain Package - Subaru WRX 2002-2007 (w/ Factory Short Shift)The Stage 1 Drivetrain Package Includes: Subaru 5 Speed Front Shifter Bushing; Subaru Rear Shifter Bushing; 5 Speed Double Adjustable Short Throw Shifter. Learn more about Subaru WRX mods. 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, or the TALL Wide Barrel Shifter. WHY? We've paired our revolutionary Double Adjustable