Map Sensor 3 Bar Gm Style Universal with Harness They're manufactured from high-quality chrome

They're manufactured from high-quality chrome silicone steel

Constructed from high-quality materials for reliability

Simply drill a hole in your exhaust

This manifold also has pads on the ports which can be drilled and tapped for nitrous nozzles or it is available from Speedmaster machined for injector nozzles

Gain 25-35hp with this direct replacement

Map Sensor 3 Bar Gm Style Universal with Harness They're manufactured from high-quality chromeSpeedmaster sensors measure the load being placed on the engine by monitoring the intake manifold vacuum. It relays the load output to the ECU which adjusts the fueling for optimum performance and economy.