i need to install a post cat o2 sensor on a custom exhaust with no bung, where can i pick up a threded ring to weld on? thanks

 

Autometer & a few of the other gauge mfgs (Innovate) offer them as an accessory to their afr gauges. Both bolt on & weld on. If you get in a pinch the bolt on tho far more $$ CAN be cut / ground & welded which IS the RIGHT way (welded). Just make sure to position it so ANY fluids (moisture/fuel) will "drip" off the end of the O2 (tip angled down). OBEY

 

yea, im gonna angle the sensor down ish. ill check jegs and autometer now, thanks

 

found the bung on jegs, they have a huge selection, thanks