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What size are the stock exhaust pipes on a 91 camaro 305 tbi?

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Old Jul 5, 2011 | 12:41 AM
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Car: '91 Camaro RS
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What size are the stock exhaust pipes on a 91 camaro 305 tbi?

Hey guys, I have an almost stock 91 camaro with a 305, and I want to know what size the stock exhaust pipes are? I don't have enough for a cat-back exhaust kit so I'm just going with a muffler, so I want to make sure I get the right one

Thanks
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Old Jul 5, 2011 | 09:10 AM
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Re: What size are the stock exhaust pipes on a 91 camaro 305 tbi?

2.25"
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Old Jul 5, 2011 | 10:32 AM
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Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: What size are the stock exhaust pipes on a 91 camaro 305 tbi?

Ok, so the muffler inlet and outlets would have to be 2.5" to fit over the pipes, right?
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Old Jul 5, 2011 | 01:07 PM
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Re: What size are the stock exhaust pipes on a 91 camaro 305 tbi?

No. Your over-axle-pipe is 2.25" outside diameter. Any performance muffler sold as 2.25" is going to have an inlet size of 2.25" inside diameter. Just cut the stock muff off, slip the loud muff on, and clamp it.
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Old Jul 5, 2011 | 01:18 PM
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Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: What size are the stock exhaust pipes on a 91 camaro 305 tbi?

Oh ok, thanks man, and I have to cut the old one off?
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Old Jul 5, 2011 | 01:24 PM
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Re: What size are the stock exhaust pipes on a 91 camaro 305 tbi?

If it's original to the car, then it should be fully welded.
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Old Jul 5, 2011 | 01:27 PM
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Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: What size are the stock exhaust pipes on a 91 camaro 305 tbi?

Ok thanks, a hack saw should take care of that
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Old Jul 5, 2011 | 01:32 PM
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Re: What size are the stock exhaust pipes on a 91 camaro 305 tbi?

Yes, but be forewarned, there's not much room for sawing. Most guys use an electric sabre saw.
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Old Jul 5, 2011 | 01:33 PM
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Re: What size are the stock exhaust pipes on a 91 camaro 305 tbi?

BTW, you can rent those if you don't own one and can't borrow one.
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Old Jul 5, 2011 | 01:35 PM
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Car: '91 Camaro RS
Engine: Carb'd 383
Transmission: Built T5
Axle/Gears: 3.73 Posi
Re: What size are the stock exhaust pipes on a 91 camaro 305 tbi?

I didn't think of that
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