all ive heard is bad things about these...but has anyone ran these things without any problems?...dont say buy the AC's...
TIA

 

I've got 'em; no problems whatsoever.

Car runs great!

 

Ive had them in my longtubes for a few months now...no issues yet.

 

AC's are probably your best choice. GM designed their ECM/PCM's arounds the AC O2 sensors so its probably best to use them. Other brands can give you different values for O2 sensor readings and that can really mess things up when your tuning your car.

 

anyone else have any first hand experience?

 

I had them for a little while with no problems. I switched back to AC's the last time I pulled my y-pipe off anyway though.