Custom exhaust - a few questions... - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 07-26-2005, 02:33 PM   #21
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Quote:
Originally Posted by 1fatcat
To get folks like you to buy the car?

He has a 97, not a 93...
There is virtually no difference between the 93 and 97 exhaust, and a performance exhaust on a car with a modified intake is a good idea. There are gains to be made, although slight. As far as sound is concerned, there is a benefit.

1fatcat, we have a TON of experience with 3800 exhaust on this forum.
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Old 07-26-2005, 02:36 PM   #22
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Can someone answer my question plz? Do I need to hang the tailpipes and the muffler, or will the tailpipes support themselves once clamped?

my pipe is 2.25", correct?
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Old 07-26-2005, 03:38 PM   #23
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I think the tailpipes just hang off the muffler once clamped. When I pulled my muffler down I think there'* a bolt holding it on either end and that'* all. Not 100% on your year but probably 90% sure.
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Old 07-26-2005, 07:12 PM   #24
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There are probably 101 different ways to mount a muffler, but mine has mounts on the two tail pipes and that is it. No mounts on the muffler itself.
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Old 07-27-2005, 07:20 AM   #25
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I've got the stock muffler on my car and it seems to be one piece with the rest of the pipe and the tail pipe. Is this the case? I'll have to cut the pipe to put a Flowmaster on.
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Old 07-29-2005, 12:39 AM   #26
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I'm giong to have to cut it. I'm just trying to figure out how I'll mount the muffler becuase I'm cutting off the hanger on the right side of the muffler.
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Old 07-29-2005, 11:17 PM   #27
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Quote:
Originally Posted by BonneMeMN

The high flow exhaust (n10 RPO) was an option on 93'*, and stadanrd on th sport luxury package (my car has this). It had 2.5" mandrel bent pipe, a catalytic converter, and the double outlet (one side) muffler. I don't think they went to all this trouble for nothing...
After reading that, I guess my question would be...why does my 95, which has the H4U sport/luxury package, only have a full 2-1/4" exhaust, with a single outlet muffler?
The exhaust is 100% original, as the car only has 61,000 miles on it...

That is why a few weeks ago I asked for a specific part number for an "F Body muffler", like everyone suggests, because every bit of info that I have found, lists a 2-1/2" inlet for most any F Body, and my car (and obviously at least one other, lol) only have 2-1/4" exhaust...Adding a 2-1/2 muffler with dual 2-1/2" tailpipes to a 2-1/4" exhaust system WILL cause you to lose torque...moreso than adding it to an already 2-1/2" complete exhaust.

In all honesty, is any of the muffler/tailpipe configurations anything other than a different "sound"? In other words, does it actually give any performance at all on a Naturally Aspirated car that probably has nothing else modded but a gutted airbox? Reason I ask is, my 97 Chevy Silverado pickup had a factory 2-3/4" exhaust. I changed the setup to one of the popular 3" into dual 2-1/2" tailpiped Dynomax setups and while the truck does "feel" faster at WOT, it also has a noticeably weaker low rpm power...aka TORQUE. Mine'* not an isolated case by far...since torque is what'* more important to me in a daily driver, I am concerned about this happening to my car as well...if I choose to modify the exhaust...
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