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m78
Joined: 14 Nov 2001
Posts: 2807
Location: In the great midwest
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 Posted: Sat May 12, 2012 12:32 pm Post subject: getting my catalytic converter welded |
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Should I remove it completely?
and then have the welder reinstall using all new hardware?
Or is it worth it taking it off, and risking fractures etc?
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Lachssilber Metallic 203 1988 325i sedan with 200,xxx miles
Top Speed 220 km/h
(OO=00=OO) |
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beejay
Joined: 18 Nov 2002
Posts: 1158
Location: Eastern, Pa
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| Posted: Tue May 15, 2012 8:38 am Post subject: |
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I had mine welded in place. It had a hole in the bottom.
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Bob
92 325ic gone 
14 BRZ ltd
05 Tundra SR5 TRD
01 VFR800fi - 03 DR650S - 83 CB1100F - 82 CB900F - 69 CB750 |
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m78
Joined: 14 Nov 2001
Posts: 2807
Location: In the great midwest
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| Posted: Wed May 16, 2012 6:45 am Post subject: |
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what were the results?
Was your noise level reduced significantly?
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_________________
Lachssilber Metallic 203 1988 325i sedan with 200,xxx miles
Top Speed 220 km/h
(OO=00=OO) |
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beejay
Joined: 18 Nov 2002
Posts: 1158
Location: Eastern, Pa
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| Posted: Wed May 16, 2012 8:05 am Post subject: |
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never heard any difference in noise. I didn't know it had a hole until the shop pointed it out.
it was a hole in the center bottom. It's held up ok. It's been a number of years since he welded it.
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Bob
92 325ic gone
14 BRZ ltd
05 Tundra SR5 TRD
01 VFR800fi - 03 DR650S - 83 CB1100F - 82 CB900F - 69 CB750 |
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85-325e
Joined: 30 Jun 2002
Posts: 4712
Location: Southampton, NY
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| Posted: Wed May 16, 2012 11:12 am Post subject: |
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Any time you seal a hole in the system, you quiet it down. The closer to the engine you are, the more sound you silence.
I have never had a problem with things fracturing, but I've always been very careful taking it out. Yo don't want it smashing into the ground etc., nor do you want it badly flexed, but the OEM cat's a pretty durable thing.
I got mine from Roadstergal (moderator) years ago... she sent it to me from Seattle, and it had been in her garage for a while. It made the trip nicely and replaced the third failed after-market cat I had in the car at the time.
Whether or not you have it removed to be welded all depends upon where the damage to the cat is.
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Cosmo - 1985 BMW 325e, Single Owner, 265,000+ ORIGINAL miles and still going strong! But now on the East Coast and the salt air corrosion is eating my beautiful car alive...
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