Ahhh thanks for the replies. I will be "removing" the cats. Hence the need to relocate the O2 sensor to lower its readings from the exhaust to give an illusion of a cat being in place. The bend is a last resort if the spacers dont work, (the spacers will only leave a space about 1/16" wide for xhasut to get to the sensor, so there is not much turbulence with that plan.) the 90 degree adapter (which several manufacturers include in their "CEL free catless systems" is actually pretty good at causing minumal turbulance. as it is not a modification to the exhaust itself, just a little 1/2" round adapter for the o2 bung mount.

Well, when i get to work on my exhaust ill have to just try the first idea and see how it goes, as long as that O2 is cat eff. and thats it, then no harm can be done (other then a CEL.)

Tim

Thanks for your info