C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Fabulous Mid-Year Sound?

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Old Jul 28, 2001 | 12:11 PM
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What the heck is it? I see it used to describe certian exhaust systems advertised...

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Old Jul 28, 2001 | 03:41 PM
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I'll take a guess and say that it could be mufflers with two "real" outlets instead of one real one and one dummy. My '87 has all 4 outlets open and as far as I know, it is the original equipment although my car was actually built in the summer of '86.

My .02
Randy

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Old Jul 28, 2001 | 05:43 PM
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Well, I have no better explanation. My 87 has what looks to be original mufflers and only one of the outlets works per muf.
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Old Jul 28, 2001 | 10:04 PM
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Since C2's are referred to as "Mid-Years"
since they were produced in the 60's
"mid years" of '63-'67, I would venture
to guess that they are comparing the sound
to that generation. Guess they're trying to
say it sounds like a big block with side
pipes or something.

Vince
'92 Z07/ZF6
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Old Jul 28, 2001 | 11:38 PM
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Hey, that works for me! Hard to keep up on all the advertising ploys. Thanks Vince
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Old Jul 28, 2001 | 11:42 PM
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I think it is lots of HP and true duals. I believe ture duals have a different sound than our Y-pipe exhaust.

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Old Jul 28, 2001 | 11:55 PM
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I punched out the blank side of my factory mufflers and combined with the high flow cat the sound is great. I do have some resonance from 1600 to 1900 rpm. I think that goes with any exhaust mods.
I still want to get Power Effects but they are a lower priority now.

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Old Jul 29, 2001 | 02:06 AM
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It refers to the bad @ss sound of side chambered exhaust. My folks 65 has side pipes on it, even with the mild (300hp) 327 it sounds KILLER. Big Blocks sound even better.

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Old Jul 29, 2001 | 04:53 AM
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Ecklers and Mid America both sell the chambered exhaust system for the C4. They do not look like mufflers but rather straight pipes with a series of deep indentations in them. They sound like the mid 60 side exhausts.
Cars with the Z51 option had all muffler outlets functional and without the Z51 only 1 outlet worked. On my 88 the Z51 mufflers were good for 5 hp more.
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