rear o2s
rear o2s ok i got some straight pipes so i will have no cats i know that when my friend had a g35 we used 2 sets of anti-foulers to move the o2 sensors out of the exhaust stream when he put some straight pipes on his car and it worked just fine can i do this on my 2000 camaro ss?
well i plan on getting a turn i just want to get some more parts first and im not sticking with these very long but i found a link where some has done it on here here is the post if you would like to check it out this is the same thing i did to the g35
From experience... get the simms. Even if you're going to get a tune, the time between the install and tune, the car won't run right. "The rear 02s are only for emissions," is a BS statement. My car ran as if it was on 6 cylinders, ordered the simms, nearly perfect. I'll be selling mine after I get them tuned out... IDK if they're work for a G35, but if they do shoot me an offer. They'll be off the car come Friday.
Originally Posted by greatskiiiier
From experience... get the simms. Even if you're going to get a tune, the time between the install and tune, the car won't run right. "The rear 02s are only for emissions," is a BS statement. My car ran as if it was on 6 cylinders, ordered the simms, nearly perfect. I'll be selling mine after I get them tuned out... IDK if they're work for a G35, but if they do shoot me an offer. They'll be off the car come Friday.
The rear O2's are only for emissions. Something else was wrong with your car if it was running like crap, or you had accidentally unplugged the fronts. The PCM could give a **** less what the rear O2's are spitting out concerning any fueling/spark/airflow table.
A basic code delete tune can be had for cheap. You can then rip your AIR, EGR, rear O2's, EVAP, CAGS, etc. O2 sims are usually about the same price, but you'll get MUCH more with a little 5 minute PCM modification. MTI did all mine for $75, which is about the going rate for a set of O2 sims IIRC.
Also, I've seen people use O2 sims and STILL get the SES light. The computer has a very narrow allowance for rear O2 sensor feedback that it considers as "ok" for it to consider the cats as working properly. An extra drop of solder or a manufacturing defect in the resistor(s) will cause the intended output signal to skew enough to throw up a red flag.
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sorry forgot the post where they did what im talking about https://ls1tech.com/forums/showthrea...t=anti-fowlers
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Verdad Gallardo Seems like they have worked good, but it's all up to you. 
I would still get a tune, but only because ripping **** out from under my hood that doesn't need to be there is one of my favorite things to do.
I would still get a tune, but only because ripping **** out from under my hood that doesn't need to be there is one of my favorite things to do.