Autometer Sport-Comp II 52mm Lean-Rich Digital Air/Fuel Ratio Narrowband Gauge 2022-ram-1500-big-horn-esi1229510 SB9-HDR4 kit features ACT's most

SB9-HDR4 kit features ACT's most popular Heavy Duty pressure plate

This cat-back exhaust system is constructed of 3-1/2 IN mandrel-bent 409 stainless steel tubing for maximum strength and durability

Dual 6 IN Diameter Polished 304 Stainless Steel Clamp-On Exhaust Tips

Several Aeromotive filters share the same housing

Pipe Into Single 3

Autometer Sport-Comp II 52mm Lean-Rich Digital Air/Fuel Ratio Narrowband Gauge 2022-ram-1500-big-horn-esi1229510 SB9-HDR4 kit features ACT's mostRunning too lean while enjoying spirited driving in your vehicle is one of the leading causes of expensive engine damage. AutoMeters Narrowband Air Fuel Gauges pair with older Oxygen Sensors to warn of lean burn conditions under heavy engine load. Connects directly to the factory O2 sensor on many applications, or uses the AutoMeter 2244 Narrowband O2 sensor. Not compatible with 5 wire air fuel sensors. Will not work with wideband O2 sensors (0 5V)