3 inch exhaust pipe and 2 1/2 inch muffler
08-25-2001, 09:47 AM
#1
3 inch exhaust pipe and 2 1/2 inch muffler
I noticed my muffler has a 2 1/2 inch clamp securing the 3 inch pipe that comes from the cat. Do I have the right muffler inlet size ? Did someone squeeze down the diameter of my pipe to fit into the muffler inlet pipe ? Sould I have 3 inch clamps at the muffler ? Is it normal for the 3 inch pipe to come down to 2 1/2 inches at the ends ?
Thanks
------------------
88 GTA 5.7 TPI Charcoal Grey Bone Stock except for loose muffler which makes it a bit louder
than normal.
Thanks
------------------
88 GTA 5.7 TPI Charcoal Grey Bone Stock except for loose muffler which makes it a bit louder
than normal. 
08-25-2001, 11:21 AM
#2
Senior Member
Sam thing here, the cat outlet pipe is 3-inch comes out into dual 2 1/2 inch pies from the muffler. Seems normal to me, you would be able to see if somebody tried to squeeze the pipe on.
08-25-2001, 05:22 PM
#3
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Join Date: Jul 2001
Location: World of Hurt, Va
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Car: 88 IROC
Engine: 305 TPI
Transmission: 700R4
Mine is like that, too. I had MAF relay problems and a backfire blew out my GM muffler. Had to get a Blowmaster (cheapest). Seemed odd to neck the pipe down like that...
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88 IROC with cobbled together (not by me)drivetrain, 86 (?) TPI unit,CE subframe connectors, Edelbrock strut tower brace, polygraphite bushings all around...it handles like a dream, but man is it hard to push!!
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88 IROC with cobbled together (not by me)drivetrain, 86 (?) TPI unit,CE subframe connectors, Edelbrock strut tower brace, polygraphite bushings all around...it handles like a dream, but man is it hard to push!!
08-26-2001, 07:38 AM
#4
<font face="Verdana, Arial" size="2">Originally posted by Bjase:
Mine is like that, too. I had MAF relay problems and a backfire blew out my GM muffler. Had to get a Blowmaster (cheapest). Seemed odd to neck the pipe down like that...
</font>
Mine is like that, too. I had MAF relay problems and a backfire blew out my GM muffler. Had to get a Blowmaster (cheapest). Seemed odd to neck the pipe down like that...
</font>
Were both mufflers necked down at the inlet ?
GTA88
------------------
88 GTA 5.7 TPI Charcoal Grey Bone Stock except for loose muffler which makes it a bit louder
than normal.
08-26-2001, 07:43 AM
#5
<font face="Verdana, Arial" size="2">Originally posted by maksik7:
Sam thing here, the cat outlet pipe is 3-inch comes out into dual 2 1/2 inch pies from the muffler. Seems normal to me, you would be able to see if somebody tried to squeeze the pipe on.</font>
Sam thing here, the cat outlet pipe is 3-inch comes out into dual 2 1/2 inch pies from the muffler. Seems normal to me, you would be able to see if somebody tried to squeeze the pipe on.</font>
Yeah, but on mine the 3 inch pipe from the cat is tapered down to 2 1/2 inches when it clamps onto the muffler inlet. What is the inlet diameter on your muffler ?
GTA88
------------------
88 GTA 5.7 TPI Charcoal Grey Bone Stock except for loose muffler which makes it a bit louder
than normal. 
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