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O2 Sensor, Post-Cat by RSpeed

Part #
Back Order Back Order BACK ORDER - We are temporarily out of stock on this item. By adding to cart, and placing an order, you will secure your place in line when the product arrives. You are never charged for back orders in advance. You will be charged when the item arrives and is shipped.

An aftermarket O2 sensor to save you money that already has the correct harness installed! Previous aftermarket sensors left it up to you to cut, splice and solder the harness to the wires, which is troublesome. This is completely plug-n-play, uses O2 sensors that are the same spec as Mazda OEM, and have been completely tested. A malfunctioning O2 sensor doesnËÇÖt send correct data to your MiataËÇÖs ECU and causes it to run poorly ËÇô lean, which leads to detonation; or rich, which wastes fuel and causes excess emission. In some states you could fail the smog test needed to update your registration. Moss has this easy to install and comfortably priced option!


  • No splicing or soldering of wires
  • Completely plug-n-play
  • O2 sensor is the same spec as OEM
  • Keep your Miata running right!

Moss Has You Covered

  • All products we sell are warrantied against defects in material and workmanship by the original equipment manufacturer or Moss Motors, Ltd., for 12 months from the date of shipment.
  • We will replace the product or refund your purchase price at our discretion.
  • The warranty does not cover labor, failure of a related component, failure resulting from faulty installation, nor would the liability of Moss Motors exceed the cost of the original component.
  • Warranty requests should be submitted to our sales department and must be supported by the original Moss Motors purchase invoice and documentation of the failure.
  • Many of the brands we carry have their own warranty terms that have you covered outside of our 12 month protection.
Product Name: O2 Sensor, Post-Cat by RSpeed Brand: RSPEED Location: Post-Cat Make: Mazda Model: MX-5 Miata Series: NA Year: 1996, 1997