Is there a way to safely bypass cats?

[panic]

Is there a way to bypass E92 M3 cats without mod the electronis? or a safe way to mod its electronics without starting an electrical nightmare?

BTW, how many and where are cats located in the new M3?

Thanks/Giu

[panic]

Thanks, very usefull...

[panic]

E30M3SE said:

dadofbud said:

panic said:

Is there a way to bypass E92 M3 cats without mod the electronis? or a safe way to mod its electronics without starting an electrical nightmare?

BTW, how many and where are cats located in the new M3?

Thanks/Giu

No and No, if you want to get some extra peformance ? get less restrictive cats, if you remove the cat where are the O2 sensors going go, just a whole can of problems.

Look at Milltek site they will have replacement Hi-Flow cats, 100cel ?

Bob

You can get bungs welded into the decat pipe and fit the O2 sensors in those bung....... no can of problems.

Sorry, i dont get what you mean...

[panic]

E30M3SE said:

If your going to remove the cats then they will need to be replaced with a de-cat pipe. So on this de-cat pipe a hole is cut, or two in the case of your car, and a threaded recepticle is welded into that hole and the lambda/O2 prode is then fitted to the de-cat pipe, one at one end one at the other. result, no cat but lambda/O2 probes still taking the necessary readings of spend gases.

Although removing of cats on a car manufactured/registered after 01/01/1993 does technically make it illegal to use on public UK and European roads, but you know that, don't you?
So the 100 cell cat is the legal way to go.

...arent the lambda sensors reading wrong or would send a wrong input to the ecu?
Who's selling for the new M3 these sport cats?

Sorry to bother you with all these wquestions.
Thanks/Giu

[panic]

I believe it's a better solution to buy racing cats thus the next (and final) question: what's the best cats available for an M3 and who sells them?