Quote:
Originally Posted by razor02097
Even a dual exhaust isn't going to solve the issue. The issue is ambient air hitting the O2 will cause the O2 sensor to false lean. With a dual exhaust you will still have sensors on each bank. If you are putting a split manifold on 4 cylinder and only putting an O2 on one pipe the ECU won't be able to monitor the burn cycle on the other cylinders.
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Uh, that's why you have an O2 sensor for every bank, like my car and 10 million Corollas and Celicas out there? (cylinders 1,3 and 2,4 are paired, each have their own O2 sensor)