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Is it stock?

C

CharlesBrown

Guest
I'm the 4th owner of my 35th anniv. Vett. And I'm intrigued by the adds for 10 to 30 more horses offered by a variety of exhaust system sellers. Seems like the cheapest bang for the buck. Problem; this car may already have one of the "improved" systems. Therefore my question. Is there any (reasonably simple) way to confirm that the car has/has not the OEM mufflers?
 

McSnagg

Well-known member
Joined
Nov 26, 2006
Messages
59
Location
Nebraska
Corvette
1988 Triple Black Convertible Z52 4+3
Look on the shell of the muffler and see if you can see any numbers, names, or a logo embossed in the metal. Is the system all welded or clamped together?
 
C

CharlesBrown

Guest
Thx. for the quick reply. System is all clamps from the cat. on back.
Here are some numbers from the shell...
G3-8180-WGL
AE
102040B (may not be the complete number but all I could read)
Regards, Charlesbrown
 

McSnagg

Well-known member
Joined
Nov 26, 2006
Messages
59
Location
Nebraska
Corvette
1988 Triple Black Convertible Z52 4+3
Those numbers did not match anything supplied as original equipment to GM.
Part of your number does match a replacement muffler manufactured by Goerlich. They also make Merit, Arvin-Meritor, and CARQUEST exhaust products. Take a look at www.goerlichs.com

Happy hunting
 
C

CharlesBrown

Guest
Upon further inspection... Both mufflers were embossed with "GM" Didn't see anything that paralled my numbers at Goerlich.
 

Edmond

Well-known member
Joined
Aug 1, 2001
Messages
5,218
Location
Louisiana
Corvette
2003 Z06
I believe the original mufflers will only flow through one outlet.

To say the least, the stock exhaust is quite restrictive. A full exhaust system upgrade, headers all the way back to mufflers would give you a solid 20 HP gain (if not more), which is quite substantial, IMO.
 

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