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      09-08-2011, 12:17 PM   #11
carchrism5
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Drives: M2, X3 M40i, 911
Join Date: Jun 2007
Location: NC

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Quote:
Originally Posted by robertm View Post
Midpipe is header to muffler right? I'm wondering how you guys are getting by without the cats? Are you just changing back to factory setup for inspection or will the engine still pass without the cat installed?

Down here we have to get the car inspected every year and they have these sniffer truck things that supposedly test cars driving down the road. I know its a big fine if you get caught w/o
It is not from the turbo manifold, from the turbo manifold there are the downpipes which have cats in them. Then there are the midpipes which have a secondary set of cats, then the rear muffler. With the midpipes you still have the cats in the downpipes.

Also with ODB2 cars, if you have even removed all the cats, if you have a tune that is designed for it, and does not throw a CEL, you can often pass.
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