2001-2004 Chevy GMC 6.6L Duramax LB7 5-Position Shift-On-The-Fly Switch

Built for the rugged demands of the road, featuring high-quality components and a heavy-duty aluminum rotary knob that provides crisp detents for precise selection.

Provides the ultimate convenience, allowing you to instantly switch between up to 5 custom performance tunes in less than a second—no need to pull over, stop the engine, or reflash your PCM.

Designed for a clean, professional installation with a plug-and-play approach that requires no wire cutting or splicing.

Effortless connectivity: Simplifies setup by connecting the blue wire to pin 69 and the black wire to pin 49 of the ECM connector.

Adapt to any scenario instantly, whether you need maximum towing power, daily driving efficiency, or performance for competition.

Offers a seamless, reliable interface for managing your custom tuning maps on the go.

Fits: 2001-2004 Chevy Silverado / GMC Sierra 2500HD / 3500HD pickup trucks equipped with the 6.6L LB7 Duramax diesel engine.