Uploaded January 2018 | Updated September 2026, 8 minutes ago

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Hey everyone! Today I’m going to show you how to replace the catalytic converter and secondary oxygen sensor on a Honda S2000. The catalytic converter and consequently the secondary oxygen sensor failed on my club racer after 145,000 miles so I’m replacing mine with a used OEM catalytic converter and an oxygen sensor purchased from eBay. This video should be applicable to high flow catalytic converters and test pipes as well.

Instagram: instagram.com/diyguystv

Difficulty: Easy
Estimated time: 1-2 hours

Step By Step Script - goo.gl/BF2kWS

Tools necessary:
- Jack Stands: amzn.to/2CKG4ZT
- Jack: amzn.to/2BDjtyW
- 12mm socket w/ratchet
- 12mm wrench: amzn.to/2Dzfyat
- 14mm socket w/ratchet
- 22mm wrench or oxygen sensor socket: amzn.to/2Dxq4Lo
- Liquid Wrench (optional): amzn.to/2Dz10DX
- Something to release wiring harness clips