Genuine Innovate Motorsports MTX-L Plus Wideband Air Fuel Gauge #3918 LSU 4.9
To put this into perspective, at 8000rpm the Digital MTX gauge will see a change in air/fuel ratio 24 revolutions of the crankshaft sooner than all other gauges on the market! MTX-L: Complete All-In-One Air/Fuel Ratio Gauge Kit.