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 Exhaus size?

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EastonTexas




Posts : 49
Join date : 2022-08-30

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PostSubject: Exhaus size?   Exhaus size? Icon_minitimeWed Oct 19, 2022 7:46 am

What is the stock inlet and outlet muffler size and layout on a 93 buick roadmaster wagon? Was wanting to put super 44 flowmaster...
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Fred Kiehl

Fred Kiehl


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Join date : 2009-11-13
Age : 76
Location : Largo, FL 33774

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PostSubject: Re: Exhaus size?   Exhaus size? Icon_minitimeWed Oct 19, 2022 8:25 am

You can get adapter pipes for both ends at your local parts store.
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94Woody

94Woody


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Age : 49
Location : Ocala,FL

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PostSubject: Re: Exhaus size?   Exhaus size? Icon_minitimeWed Oct 19, 2022 7:38 pm

Jacking it up to look at it and measure not possible? Even better take it to a muffler shop and tell them what you want.

Not 100% on this but it should be 2 to 2.25" with offset inlet and outlet.

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Fred Kiehl

Fred Kiehl


Posts : 7283
Join date : 2009-11-13
Age : 76
Location : Largo, FL 33774

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PostSubject: Re: Exhaus size?   Exhaus size? Icon_minitimeWed Oct 19, 2022 8:29 pm

94Woody wrote:
Jacking it up to look at it and measure not possible? Even better take it to a muffler shop and tell them what you want.

Not 100% on this but it should be 2 to 2.25" with offset inlet and outlet.

I believe it is offset to opposite sides.
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Wojtek

Wojtek


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Age : 74
Location : Columbia Station Ohio

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PostSubject: Re: Exhaus size?   Exhaus size? Icon_minitimeThu Oct 20, 2022 2:43 pm

The problem your going to run into if you want to run true duels is the trans mount it's set up for a single exhaust . When I had my 93 I got a later model 94/96 cross member and had a muffler shop fabricate a system for me it wasn't cheap .
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Fred Kiehl

Fred Kiehl


Posts : 7283
Join date : 2009-11-13
Age : 76
Location : Largo, FL 33774

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PostSubject: Re: Exhaus size?   Exhaus size? Icon_minitimeThu Oct 20, 2022 9:10 pm

Duals are actually easy. I welded a bar on top of the driver's side, and cut the area out under the bar, then used the scrap from the cutout part to cap the ends of the tube. You do not even need to buy another trans crossmember.

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EastonTexas




Posts : 49
Join date : 2022-08-30

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PostSubject: Re: Exhaus size?   Exhaus size? Icon_minitimeThu Oct 20, 2022 10:48 pm

Haven't had a chance to get under the car yet. I was only interested in swapping the stock muffler at the moment. But that is good info about the dual exhaust setup.
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