Will PLX Wideband SM-AFR Sensor Fit In Stock O2 Sensor Location?
 

Dose any one know if this will work in the stock o2 hole in a tii? There docs seem to say it will work fine, but rx7's might be different.

I'm assuming the SM is similar to the M-series; it will work, but the stock O2 hole is a little too close to the turbo, and may affect the longevity of the wideband sensor.

PLX suggest you put it at least 20(?) inches down stream of the turbo. But for short term the stock o2 bung is fine

To my knowledge most all o2 sensor threads are the same...18mmx1.5 I think.