C3 Exhaust System
Thread Starter
2nd Gear
Joined: Jun 2020
Posts: 2
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C3 Exhaust System
I need to replace my exhaust system on my 1974 corvette. It has the base 350 motor, with an automatic transmission. It has the huge mufflers from back in the day. I would like it to have a clear exhaust note. Anyone have any suggestions?
Race Director
Joined: Nov 2006
Posts: 13,258
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From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
New Corvettes have a much more modern sound to them. Old Cobra's much more of the growl one would expect from a 60's performance exhaust.
big difference.
60's early 70's V8 growl, chambered exhaust. A bit on the loud side, but sound great. Also a fair bit of drone in the cabin at speeds of 70 and up.
big difference.
60's early 70's V8 growl, chambered exhaust. A bit on the loud side, but sound great. Also a fair bit of drone in the cabin at speeds of 70 and up.
Last edited by 4-vettes; Jun 17, 2020 at 05:03 PM.
Le Mans Master
Joined: Aug 2006
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From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Hi and welcome!
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Intermediate
Joined: Mar 2020
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where are you located? I have a nice newer system that I took off and replaced with side pipes. Magna flow mufflers nice stainless tips...sounds really nice.
Former Vendor
Joined: Jan 2015
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This system seems to be a favorite for the C2/C3s. We don't make a complete system at this time, but the CC kits are about as close to it as you could get and uses our Signature Series straight-through mufflers.
Le Mans Master
Joined: Jan 2007
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From: Omaha NE
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2022 C3 of the Year Finalist - Unmodified
2020 C3 of the Year Finalist - Unmodified
I bought the 2 1/2" CC system with Magnaflows over 10 years ago.
Perfect fit & great sound. And it still looks like new.....
Perfect fit & great sound. And it still looks like new.....
Last edited by SEVNT6; Jul 16, 2020 at 01:20 AM.
Le Mans Master
Joined: May 2008
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2022 C3 of the Year Finalist - Modified
Don't count on anything you can buy will fit the car......sorry, very disappointed in many of the systems I have bought, and subsequently had to return.....all proclaiming they are made to fit my car. And each one with the same worn out excuses.
Last edited by Shovels and Vettes; Jul 16, 2020 at 05:13 PM.
Le Mans Master
Joined: Jun 2019
Posts: 7,658
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From: Indiana
I drove to allens and picked mine up..perfect fit they know c3’s
from manifolds back..told them i already had mufflers, and the transmission bracket included
from manifolds back..told them i already had mufflers, and the transmission bracket included
Last edited by interpon; Jul 16, 2020 at 09:39 PM.
Le Mans Master
Joined: Jan 2001
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My exhaust pipes came from Corvette Central. Installed 2.5" ramhorns, 64-65 2.5" downpipes (no neckdown on 64-65 pipes), 2.5" all the way back, and the mufflers, and muffler supports, from corvette central also. Bolted up beautifully and I'd had headers and an exhaust system fabricated an exhaust shop for 30+ years.
more info here: https://www.corvetteforum.com/forums...post1598219197
more info here: https://www.corvetteforum.com/forums...post1598219197
Last edited by carriljc; Jul 16, 2020 at 10:22 PM.
Drifting
Joined: Jul 2012
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From: Slovenia, EU
2017 C3 of Year Finalist
Drifting
Joined: Jul 2012
Posts: 1,255
Likes: 297
From: Slovenia, EU
2017 C3 of Year Finalist
Are we talking about part number 11225? Is that a stock size muffler that bolts right on?