Quote:
Originally Posted by rockyfeller
Since buying my car I've been itching to get catless DPs. Main thing stopping me is a CEL, as I'm sure this is a common concern. Except for a few varied accounts where it has magically worked for some people, the general consensus seems to be that O2 spacers/defoulers and microcats won't fool this car the way it does with other cars. I know some tuners quietly discreetly address this but what if I don't want a tune?
I know most of you will say "no tune??? Eh? What's the use?". Trust me, I'd love 100hp+ but I'm just paranoid of blowing up the engine and my car has an extended warranty. Not looking to void that. Besides I honestly have more that enough power for my needs. Extended warranty doesn't cover the exhaust system. And even if I had a turbo failure I would just switch back to the stock cats. So why go catless in the first place? I HAVE to have that sound! It's intoxicating.
So it seems like the only idea not discussed much on this forum is this product: Area seven fo iO2 simulator. (Forum won't let me spell it out. Just google.) They claim it will work on any car and I haven't heard of any situations on any forums where the product hasn't worked. I haven't seen a thread on this M5 forum about it though.
Has anyone here used this product? Its not all that cheap for 2 of them, (for the 2 sensors) but if it does work, I'd say it's well worth it to just be done with it and solve the CEL annoyance as a permanent fix. CEL will still then work for any other reason unrelated to the O2 sensor.
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This thread will be of interest to you. I found some what appears to be some decent looking simulators (same what you found, form wont let me type it) that another member just purchased (I have 4 more months before my emissions are due so didn't buy them yet), he is actively testing it now and will report back if they work. He has already tried spacers and mini-cats with no luck so this is his last resort. The sims are not cheap but removing your down pipes to put back in the cats is 10 hours of pure suck so they will be well worth it if they work out.
https://www.xbimmers.com/forums/show....php?t=1758872