Cats, o2 Sims, or o2 delete from PCM
If I get an ORY then there are know cats, so do I buy rear o2 Sims or have the rear o2 deleted from the PCM? Or both?
If I choose to use cats, due I still need the o2 Sims?
One last thing, I'm installing a cam at the end of the month and will have the PCM tuned then, even though I won't have the exhaust done can I just have them delete the rear o2's at that time?
Thanx any help would be great!
here u can find block of plates for Air and EGR , http://www.ls1speed.com/catagory.cfm?catagory=Exhaust
I blocked them because after my headers install I started hearing a ticking noise thats looks like a leaking sound .
FWIW I'd wait on the tune until you get it all finished (cam and exhaust) the reason being your tuner might need to change some things once the exhaust gets done, to compensate for the freer flowing exhaust

