Click to enlargeMSD : 8933 : Air / Fuel Ratio - Rich / Lean Indicator

The Rich/Lean Indicator (RLI) makes tuning your engine a simple job. By measuring the amount of oxygen in the exhaust, the RLI will tell you whether your engine is running on the rich or lean side of stoichiometry (14.7:1 air/fuel ratio). This can be especially helpful in tuning after making carburetor, fuel injection or intake manifold changes. The Indicator uses a heated titanium oxygen sensor to measure the oxygen content in the exhaust.
  • Rich/Lean Indicator with Heated 02 Sensor, Includes Mounting Boss, Plug and Harness




  • Availability: Usually ships the next business day.

    8933$169.99
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