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Review on πŸš€ Enhance Performance and Efficiency with Denso 234-4521 Oxygen Sensor (Air and Fuel Ratio Sensor) by Jason Cavett

Revainrating 5 out of 5

Perfect fit, Denso quality!

Best price. Installed on my 2007 Is350. Downstream, so the second sensor is down. "Probe 2". You need a special tool to remove oxygen.

Pros
  • Features a double layer of protection, an alumina trap layer, a PTFE filter and a stainless steel body.
Cons
  • Very expensive.