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What our customers are saying:

"Pegasus is an excellent business. I rely on Pegasus for high quality (hi-temp and hi-pressure) custom racing hoses. They use the highest quality components and the finished products are outstanding. Shipping is prompt and service is the best. Of course, they are from Wisconsin, one of the last remaining sites of professionalism and courtesy and the only source of good cheese."
D.N. from California

Air/Fuel Ratio Gauges and Accessories

Correct air / fuel mixture is critical to achieving maximum power, efficiency, and engine life. The color of your exhaust pipe can only tell you so much! Air / Fuel Ratio Gauges tell you exactly what is happening in your engine, as it happens.

Innovate Wideband Air/Fuel Ratio Monitors

Auto Meter Wideband Air/Fuel Ratio Monitors

Oxygen Sensors

Oxygen Sensor Weld Bungs and Fittings

Recent Top Selling Products for this category
Mild Steel Weld Fitting for O2 Sensor, 1/2" Reach w/Plug	Stainless O2 Sensor Blanking Plug, 18 x 1.5mm This special stainless-steel M18-1.5mm plug is designed to replace std sized oxygen sensors in situations where the oxygen sensor is not needed or will be damaged when using leaded fuel.	No -Weld 1 9/16"-2 1/2" Exhaust Band Clamp for EGT Probe

Air/Fuel Ratio Gauges and Accessories

Air & Fuel Delivery

Digital Gauges

Electrical Gauges

Exhaust

Gauges Sorted by Function