Give your shifting an upgrade with the Mishimoto Shift Knob Extension Our solid 6061 billet aluminum construction is CNC - machined to perfection, giving you a solid connection between the shift knob and gear linkage. Our design also features a flanged base for compatibility with sliding reverse lockouts. The Mishimoto Shift Knob Extension is available in a sleek black anodized finish, with the option for a 3 or 6 extension. As with all of our products, these extensions also include the Mishimoto Lifetime Warranty.