C3 L82 H-pipe question.
Thread Starter
Intermediate
Joined: Aug 2022
Posts: 34
Likes: 55
From: Laura, Ohio
C3 L82 H-pipe question.
I just installed a Corvette Central Dual exhaust in the 76 L82. I went with the standard mufflers. It went together very well. I was considering adding an H-pipe behind the transmission crossmember. The sound is a little on the quiet side, but this is a short road trip car so that is fine with the wife. At 2700 RPM, (64mph) the sound changes to a more rowdy muscle car sound. It's a great sound except several hours of it crackling will get old on a road trip unless i keep it under 63mph.
My question is this. What change in sound does the H-pipe make? Will it smooth out the sound, or get rowdier? Will it get quieter or louder over all?
Who has done this and what are you experiences?
My question is this. What change in sound does the H-pipe make? Will it smooth out the sound, or get rowdier? Will it get quieter or louder over all?
Who has done this and what are you experiences?
Melting Slicks
Joined: Dec 2009
Posts: 3,233
Likes: 657
From: Thunder Bay
Adding the H-pipe effectively doubles the frequency of the exhaust note. Essentially it gets quieter and more mellow, and that drone at RPM should disappear. Without the H-pipe, you essentially have two obnoxious little 4-cylinders.
Last edited by drwet; May 16, 2023 at 10:50 AM.
