Originally Posted by Eleventeen
Removing (all) the cats will most definitely trigger a CEL (speaking from experience). Remove all of your cats (if you want) then use O2 spacers on the back O2 sensors only. They work great; no CEL. The ECU only uses the rear sensors for monitoring pollution control. I have used them on my C32 with no problems what so ever (mine were even home made. Google search it; you'll find what you need).
Thanks Eleventeen, thats exactly what i was hoping for. Can i probe your brain further?
It appears from all the pics of o2 spacers is just a way to move the o2 probe back from the exhaust gases flowing through the pipe. Seems i could just weld 2 or 3 o2 bungs together then plug it in for the same effect, correct?
I did google it as per your recommendation and it seems that there is a "sweet spot" as far as the length and open area of the spacer. Can you give me more details like do i need to make sure its a certain length. What made your c32 happy?
And just to add to the content of this thread my searches also turned up Autozone Help! 42002(sparkplug antifowler) $3.70 ea. Appearantly this is the same thing as an o2 spacer. In all honesty this is the first time ive heard of this o2 spacer idea...i thought it was cheezy and ghetto at first but appearantly some people think its more reliable than an o2 simulator and if it works it works!