How do I cure a lean condition?

[Tamago]

Originally Posted by botchilah

The further away your o2 sensor is, the slower the response time but I think it's ultimately fine wherever you put it. A lot of dynos mount the wide-band o2 sensor at the exhaust tips anyway.

that's for convenience and quick change-out. it's def not as accurate. most factory turbo cars put the o2 sensor within a foot of the turbo hotside outlet.