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Topic: Side Exhaust Loudness Issues

in Forum: C3 Fuel, Emission Control, and Exhaust Systems

Side Exhaust Loudness Issues

Posted: 6/1/17 6:27am Message 1 of 8
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Joined: 1/4/2016
Posts: 1
Vette(s): 75 Coupe 4-Speed
Does anyone have any experience with Classic Chambered Exhaust Inc.'s Vette-Pack side exhaust?  I am currently running 2-1/4" C2 chambered mufflers behind the '69 C3 covers and the car is just too loud.  Like they say. "If its too loud, your too old".

The engine is a 383 Stroker putting out approximately 510 HP.  Testing my current system with a db meter in a parking lot, I am getting 88 db at idle and 96 db at 2500 RPM.  I'd like to take some of the volume out without choking down the engine.

Classic Chambered offers a 2-1/4" diameter baffle inside a 3" outer body which is the largest diameter that will fit behind the '69 C3 cover.  It is made up of a 20" chambered muffler and a 20" resonator.  I've heard the sound bites off of their website, but I'd like to hear from some one that has heard the Vette-Packs in person.

I look forward to your response.

Bill Thomas





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Re: Side Exhaust Loudness Issues

Posted: 6/1/17 9:13am Message 2 of 8
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Equinunk, PA - USA
Joined: 10/31/2007
Posts: 2465
Vette(s): 1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.
I spoke to a representative at the Corvettes at Carlisle last year about that same system. He said it WILL DEFINITELY be loud. I was told to get the Hooker system with headers and 4 inch collectors and mufflers. Back pressure will not be diminished and sound will be more acceptable.


Re: Side Exhaust Loudness Issues

Posted: 6/1/17 7:41pm Message 3 of 8
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Overland Park, KS - USA
Joined: 7/9/2003
Posts: 914
Vette(s): 1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day. 2023 Accelerate Yellow HTC Stingray
Haven't heard yours but I do know that the '69 side exhaust is quieter than the mid-year is.


1973 L-82 4 spd

Re: Side Exhaust Loudness Issues

Posted: 11/12/17 11:12am Message 4 of 8
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DUNEDIN, FL - USA
Joined: 10/22/2004
Posts: 833
Vette(s): 1969 COUPE CORTEZ SILVER, BRIGHT BLUE INTERIOR 383 cu. in. 512 HP. Hooker headers w/ side pipes PS PS AC AM FM STEREO. 68,000.MILES C5 5oth Anniversary Coupe , auto.350hp
dont know about the ones your talking about but o have Hookers WITH 4 in pipes. I startwf wich s reverse flow mufflets and it was quieter thsn the free flow mufflers i have now. however , i wanted it louder. The 383 is the music for me. good luck


Re: Side Exhaust Loudness Issues

Posted: 11/13/17 7:06am Message 5 of 8
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Overland Park, KS - USA
Joined: 7/9/2003
Posts: 914
Vette(s): 1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day. 2023 Accelerate Yellow HTC Stingray
You can always take the muffler inserts out. ;)


1973 L-82 4 spd

Re: Side Exhaust Loudness Issues

Posted: 11/26/17 12:45pm Message 6 of 8
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DUNEDIN, FL - USA
Joined: 10/22/2004
Posts: 833
Vette(s): 1969 COUPE CORTEZ SILVER, BRIGHT BLUE INTERIOR 383 cu. in. 512 HP. Hooker headers w/ side pipes PS PS AC AM FM STEREO. 68,000.MILES C5 5oth Anniversary Coupe , auto.350hp
tried to post a video of my car with sidepiped driving on highway, but couldnt figure it out.☹


Re: Side Exhaust Loudness Issues

Posted: 11/26/17 1:03pm Message 7 of 8
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Overland Park, KS - USA
Joined: 7/9/2003
Posts: 914
Vette(s): 1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day. 2023 Accelerate Yellow HTC Stingray
From personal experience I can tell you that a 66 big block with chambered side exhaust was a lot louder than my small block with the 69 style reverse flow side pipes.


1973 L-82 4 spd

Re: Side Exhaust Loudness Issues

Posted: 11/27/17 9:44am Message 8 of 8
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DUNEDIN, FL - USA
Joined: 10/22/2004
Posts: 833
Vette(s): 1969 COUPE CORTEZ SILVER, BRIGHT BLUE INTERIOR 383 cu. in. 512 HP. Hooker headers w/ side pipes PS PS AC AM FM STEREO. 68,000.MILES C5 5oth Anniversary Coupe , auto.350hp
i posted a short video on youtube crusing at About 50mph. give you an idea of what mine sounds like search 69 383 stroker w/Hooker side exhuast


in Forum: C3 Fuel, Emission Control, and Exhaust Systems


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