Thread: Test Pipe?
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      08-11-2012, 04:48 PM   #89
m0da
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Drives: 2008 e93 m3
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Quote:
Originally Posted by flanast
I just ordered a corsa exhaust. What do the test pipes do for me. Do I keep my cats so that I pass inspection?
You will not keep your primary cats with the test pipes.

What the test pipes do is replace your primary cats with simple straight pipes.

You will not pass inspection, due to a CEL coming on, however there are a few solutions to this issue.