Toyota MR2 Message BoardToyota MR2 GenerationsMK 2 MR2 - SW20Non-Turbo Engine Talk, Modifications, and SwapsPDAobx header
5S-FE MK2 Non-Turbo Engine, header, reinstall, o-sensor, bottom, guys, installed, important
- hey guys, just installed an obx header. how important is it to reinstall the bottom O-sensor?