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Forums -> C3 Fuel, Emission Control, and Exhaust Systems
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6/1/17 8:27am - Original Message: 'Side Exhaust Loudness Issues'
billt75
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Vette(s):
75 Coupe 4-Speed

Joined: 1/4/2016
Posts: 1
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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6/1/17 11:13am - Reply: 'Re: Side Exhaust Loudness Issues'
manchestershark Lifetime Member
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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 1900
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.

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6/1/17 9:41pm - Reply: 'Re: Side Exhaust Loudness Issues'
73shark
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Overland Park, KS - USA

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.

Joined: 7/9/2003
Posts: 394
Haven't heard yours but I do know that the '69 side exhaust is quieter than the mid-year is.

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1973 L-82 4 spd

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11/12/17 1:12pm - Reply: 'Re: Side Exhaust Loudness Issues'
VETTERBOB Lifetime Member
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DUNEDIN, FL - USA

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

Joined: 10/22/2004
Posts: 824
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

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I might be going to hell in a bucket, but at least I`m enjoying the ride!

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11/13/17 9:06am - Reply: 'Re: Side Exhaust Loudness Issues'
73shark
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Overland Park, KS - USA

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.

Joined: 7/9/2003
Posts: 394
You can always take the muffler inserts out. ;)

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1973 L-82 4 spd

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