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 Post subject: Cadillac converter
PostPosted: Thu Jan 25, 2018 3:59 am 
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Joined: Thu Jan 25, 2018 3:56 am
Posts: 2
Year and Trim: Pontiac Bonneville 2005
I have a 2005 Pontiac Bonneville in my Cadillac converter is clogged up I just need to know the size so I know what pipe to get :banana:


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 Post subject: Re: Cadillac converter
PostPosted: Thu Jan 25, 2018 12:02 pm 
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Joined: Wed May 13, 2009 10:45 pm
Posts: 5425
Location: CHICAGO
Year and Trim: 2006 Cadillac STS-V, 2004 Pontiac GTO
Cadillac is a car brand

Catalytic Converter is an exhaust component.

Should be 2.5". However, they make direct fit replacements, so you don't need to worry about this.

Since you didn't list which model you have, I believe these are the GM parts numbers;

3.8L V6 = 10368894
4.6L V8 = 10360168

However, it is best to give them your VIN for exact.

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Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2015 Chrysler Town & Country Limited Platinum: Mommy's NEW RGC
2007 Chrysler Town & Country Limited: Daddy's beater affectionately called the Rolling Garbage Can or "RGC" for short
2009 Chevrolet Impala SS: LS4 V8, Victory Red
1999 Chevrolet Suburban: Sunset Gold Metallic - Daddy's winter beater and plow truck


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 Post subject: Re: Cadillac converter
PostPosted: Thu Jan 25, 2018 12:15 pm 
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Joined: Mon May 10, 2010 6:11 pm
Posts: 8855
Location: Chicago, IL
Year and Trim: 2003 SLE
I'd get a cat instead of straight piping it. You'll not only fail emissions, but the car will reek. You'll hate it at stop lights.

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 Post subject: Re: Cadillac converter
PostPosted: Fri Jan 26, 2018 7:54 pm 
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Joined: Thu Jan 25, 2018 3:56 am
Posts: 2
Year and Trim: Pontiac Bonneville 2005
I have the se i think to to sure


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 Post subject: Re: Cadillac converter
PostPosted: Mon Jan 29, 2018 3:31 pm 
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Joined: Wed May 13, 2009 10:45 pm
Posts: 5425
Location: CHICAGO
Year and Trim: 2006 Cadillac STS-V, 2004 Pontiac GTO
Anything but the GXP is the same engine, the 3.8L V6.

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Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2015 Chrysler Town & Country Limited Platinum: Mommy's NEW RGC
2007 Chrysler Town & Country Limited: Daddy's beater affectionately called the Rolling Garbage Can or "RGC" for short
2009 Chevrolet Impala SS: LS4 V8, Victory Red
1999 Chevrolet Suburban: Sunset Gold Metallic - Daddy's winter beater and plow truck


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 Post subject: Re: Cadillac converter
PostPosted: Mon Jan 29, 2018 5:55 pm 
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Posts like an LN3
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Joined: Thu May 22, 2008 3:53 pm
Posts: 557
Location: Farmington Hills, Michigan
Year and Trim: 99 Regal GS
My Regal and GP don't have cats and honestly I don't think I've ever noticed an odd smell of any sort. On the contrary I've more often noticed a smell with cars that do have cats such as my truck or my old regal. It's not an unpleasant smell or anything though, just something I never notice when I drive the Regal.

Am I in the minority here?

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 Post subject: Re: Cadillac converter
PostPosted: Mon Jan 29, 2018 10:41 pm 
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Joined: Wed May 13, 2009 10:45 pm
Posts: 5425
Location: CHICAGO
Year and Trim: 2006 Cadillac STS-V, 2004 Pontiac GTO
What do your clothes smell like.

Mine from the GTO reek.

_________________
Image

Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2015 Chrysler Town & Country Limited Platinum: Mommy's NEW RGC
2007 Chrysler Town & Country Limited: Daddy's beater affectionately called the Rolling Garbage Can or "RGC" for short
2009 Chevrolet Impala SS: LS4 V8, Victory Red
1999 Chevrolet Suburban: Sunset Gold Metallic - Daddy's winter beater and plow truck


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 Post subject: Re: Cadillac converter
PostPosted: Sun Feb 04, 2018 11:01 am 
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Joined: Sat Mar 26, 2011 11:01 pm
Posts: 55
Year and Trim: 2003 SE
I used a Magnaflow 99306HM Universal on my 03, it was 85 and got it welded on for 80, you need a cat, do not go without one, this was the cheapest path, code 0420 and clogged cats resolved, pass emissions and right for the environment


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 Post subject: Re: Cadillac converter
PostPosted: Sun Feb 04, 2018 11:34 am 
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Joined: Sun Aug 22, 2010 11:11 pm
Posts: 1492
Location: Ontario, Canada
Year and Trim: 2000 Bonniville SSEi L67
give a hoot, dont polute

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 Post subject: Re: Cadillac converter
PostPosted: Sun Feb 04, 2018 11:54 am 
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Joined: Tue Dec 04, 2012 8:33 pm
Posts: 31
Location: Meadville, Pa
Year and Trim: 2005 Bonneville SLE
in all honesty, when I had issues with my 2005 SLE I thought the cat was plugged up because it was smelling hot and bogging down under stress. so I beat the cat inners out.. and although it was not the issue I had it did run better. The thing is after I found my engine issue I did like the others said and noticed it was definitely making a toxic smell and it sure as heck did throw a O2 code saying the cat efficiency was low. Not only that but the hollowed out cat was much louder. the end result was a direct replacement cat from walker $150 plus gasket and clamp. if you want to make it right, do it right, fix the cat.


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 Post subject: Re: Cadillac converter
PostPosted: Mon Feb 05, 2018 2:48 pm 
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Joined: Tue Aug 25, 2009 8:32 pm
Posts: 4323
Location: Dearborn, MI
Year and Trim: '93 SSEi
'05 STS-4
'97 Camaro
'97 LeSabre
I could go either way with the smell thing... If the engine is running lean or rich, the cat puts out a sulfur smell I absolutely cannot tolerate.

I've noticed that in my camaro, which has a cam, that no cat does have a bit of a smell, but it's overpowered by the oil burning off the exhaust from the leaking rear main. But it's just an odor as opposed to something that reeks.

The only time I'll not put a new cat back in is if I'm planning on replacing it a short time down the road, or my plans for the project vehicle are still in flux. All my project cars have one, or two. The only reason the Camaro doesn't right now is that I bought it that way and I want to put a true dual exhaust on it, which means I have to plan the exhaust accordingly and didn't want to spend $150 on something I'm just going to rip out and redo in a few months.

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Runs:
'93 Pontiac Bonneville SSEi - Twincharged, manual, racecar! Build thread
'97 Chevy Camaro - 3800, T5, T-tops, my DD
'05 Cadillac STS - V8, AWD, her DD
'89 Buick LeSabre Limited - winter DD
'84 GMC Sierra Classic - Twin turbo 3800
'97 Buick LeSabre - L67 project
'92 Pontiac Bonneville SSE future project

Doesn't run:
'87 Buick LeSabre T-type - future victim
'67 Buick LeSabre - future victim


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