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      12-09-2014, 05:01 PM   #4
Arsonism
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Drives: '08 M Coupe
Join Date: Oct 2013
Location: Austin, TX

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Quote:
Originally Posted by Beedub View Post
why not try and source a set of the DKF section one, they are about to be garnished with 300 CELL metallic race CATs, they currently have the 100 CELL race cats.
Honestly, whatever has happened to the cats I like the way exhaust has ended up sounding and I really hope changing any of it doesn't spoil it.

Quote:
Originally Posted by pokeybritches View Post
If you need OEM headers, let me know. I have a set ready to ship. I'm about to take them to a cat recycler for scrap.

The rest of your exhaust shouldn't matter when it comes to throwing a catalytic converter code, because there are no O2 sensors past the headers.

If I'm replacing I won't be doing OEM I don't think. I've already got a decent amount of aftermarket piping might as well finish it off. That's what I thought on the O2 Sensor but it threw me for a loop when it said it was the "second" one. I figured there might be something on the 08 that monitors that as well or another way to find the back pressure.

For now the car still spits up black from the exhaust but the SES light is off.
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