Dose anyone know what car to get a heated 3 wire o2 out of that fits my L98. So I can tell the guy at autozone which one to get. I just need one with the right threads. I'll do the wiring. Like my old starion used a one wire o2 and we would upgrade to an eclipse 3 wire o2. I have no cat and my friend said it takes longer to get the car in closed loop. Thanks in advance for the help! Adam :-)

 

14mm same as a spark plug.

 

But what car came with one. Thanks. Adam :-)

 

I believe a Ford Tarus, had the heated 3 wire sensor. TPIS has them (bosch) for a fair price. Or they used to anyway...Its been a while.

 

My friend still had the box for his 3 wire O2 he installed on his camaro. It's a Bosch O2 and the part number is 13077. It fits a bunch of gm vehicles. It's the same one for a 91 Corvette ZR-1. Just wanted to post this info for anyone else that was looking to do the same thing. And thanks again for the help guys! Adam :-)