The FAST MAP (Manifold Absolute Pressure) sensor adapter harnesses attach to the engine harness on one side, and the MAP sensor on the other side. Manufactured from original GM components, these harnesses facilitate an easy plug-and-play installation to offer up reliable performance. Each harness is quality-made with OEM connectors, seals, wiring (with correct color-coded leads) and conduit to make replacement a breeze. Want to get the most performance from your ride? Then do it with FAST--today's leading name in fuel air spark technology!