How much is good air worth?

[Ed Wright]

Originally Posted by Todd Geisler

I used a wide band o2 system with my data logger for 3 or 4 seasons. Removed it and sold it to a friend, still being used today with the same sensor and lead racing fuel the entire time.

I replace mine each season just to be safe. Street cars get a lot more run time than a race car. It will cause O2 issues in a daily driver.