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-   -   Catalytic Converter DIY?? (

pattynole 03-09-2011 01:20 PM

Catalytic Converter DIY??
i looked and didn't see a thread for replacing the catalytic converter. maybe i missed it.

anyone ever do this? i'm in FL so the BavAuto part would work for me.

Pappa Bear 03-09-2011 02:27 PM

Step 1: Cut out old ones.
Step 2: Weld in new ones.
Take it to a custom exhaust shop, let them put it in. I got both of mine installed for $100 which I recouped by selling the old ones to a recycler. Overhand blind welding is not easy, its best to let someone who does it all day long do it. Even if they are not a BMW specialist.

edjack 03-09-2011 02:27 PM

Do you enjoy working on rusty exhaust systems? If so, it's a remove/replace job.

Bear in mind, the I6 exhaust manifold bolts are, I believe, $21 apiece, so don't break them if you can help it.

Pappa Bear, he has a six; different ballgame. The Bav Auto cats are an assembly, with the pipes attached.

pattynole 03-11-2011 04:56 AM

sounds like something my specialist will be doing for me. there goes another several hundred bucks.:dunno:

bluebee 03-11-2011 05:56 AM


Originally Posted by pattynole (Post 5909945)
sounds like something my specialist will be doing for me. there goes another several hundred bucks

No DIY in the bestlinks.

There is just this:
- DIY: Free Fix for LOOSE Catalytic Converter Shields
- Catalytic converter dissection photos
- What kills catalytic converters?
- Miller Remanufactured Catalytic Converters

I ask the OP to run a search and let us know better DIY links that pop up so the next person stands on his shoulders.

bluebee 12-24-2012 12:35 AM

It would have been nice if the OP had gone through the catalytic converter threads to find the best to help others ... but nonetheless, I just wrote this up for the bestlinks.

- How to remove & replace a catalytic converter (1) & how to fix rattling cat shields (1) & P0420 codes related to cats (1) (2) (3) & cat autopsy photos (1) & what kills cats (1) & an EPA fact sheet on catalytic converter warranties (1)

We probably could use work on these - but since I've never worked on my cats, I don't have any personal knowledge of what is of interest to others in the future so that's what we have now.

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