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Topic: What kind of exhaust?

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

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What kind of exhaust? (1/22)
11/30/07 3:43pm

bio11
Former Member
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Oklahoma City, OK - USA

Vette(s):
1972 LS5 Convertible,Auto.Targa Blue with Black Interior.

Joined: 4/1/2007
Posts: 432

I am shopping for exhaust systems. Does anyone have any preferances? I have a set of headers on it but that is it. I have toyed with the idea of Hooker Headers and side pipes but the $$$ are kind of steep. What about the chambered exhaust behind headers, or just a factory replacement behind headers, and does anybody know what a stage 2 system is. Confused

Confused

I need to make a dicision pretty soon, I think my neighbors are getting tired of the noise coming from my garage. By the way its a 454.

Thanks

Lonnie

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What kind of exhaust? (2/22)
11/30/07 3:49pm

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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.

Joined: 5/18/2004
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What kind of exhaust? (3/22)
11/30/07 4:57pm

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Burke, VT - USA

Vette(s):
SOLD - "The Toy" - '70 Convertible
SOLD - "The Beast" - '90 ZR-1 (#682)
SOLD - "Betty" - '28 Ford Model A Tudor
Still have - "BLKBRRD" - '78 Pontiac Trans Am

Joined: 1/23/2002
Posts: 7191

On "The Toy" I upgraded to 2 1/2" from the stock 2" a few years ago. Went with a system from Corvette Central and have been happy with the sound (not too loud, not too quiet - just right).

On "BIGBRRD" the stock system was toast so it all got pulled off. The new system is Heddman 'shorty' headers into 3" Pypes X-pipe into Flowmaster Delta 50s. That produces some RUMBLE inside the car at 55/60 MPH but is nice and mellow at idle.

Lots of choices - HAVE FUN...!!!

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What kind of exhaust? (4/22)
11/30/07 7:48pm

MrMako
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WALL TOWNSHIP, NJ - USA

Vette(s):
1969 350 4-speed L46 fathom green Coupe w/AC 134a conversion, Steeroids rack n pinion ENGINE-3970010,K0120CKB TRANS-19S733177,P9R13b INTAKE-3965577 HEADS -3998993 DISTB -1111493

Joined: 11/4/2003
Posts: 29

I just had the 2 1/2 chambered installed, and it sounds oh so sweet. I cant believe ive been muffling my baby all these years. You also gain some work room with the mufflers being removed. I had an issue with the 255 60 r15 tires I have, but no more. Just remember to order the 2 1/2 transmission mount bracket.

What kind of exhaust? (5/22)
11/30/07 8:00pm

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North Charleston, SC - USA

Vette(s):
1975 L48 AT AC T-top

Joined: 3/20/2004
Posts: 4176

Like Mr. Mako, I went with the chambered system om my small block. I am very happy with the sound and losing the stock mufflers really opens up the back end.

Scott

What kind of exhaust? (6/22)
11/30/07 8:38pm

rearn2go72
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Bladenboro, NC - USA

Vette(s):
1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.

Joined: 1/22/2006
Posts: 1058

I also went with the chambered exhaust, hooked to Hooker super competition headers. I love the sound and the appearance from the rear of the car.

What kind of exhaust? (7/22)
11/30/07 9:12pm

bio11
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Oklahoma City, OK - USA

Vette(s):
1972 LS5 Convertible,Auto.Targa Blue with Black Interior.

Joined: 4/1/2007
Posts: 432

Does the Chambered System use the same brackets, Mr Mako said something about a transmission bracket? I had a 68 435HP convertable in high school that had chambered side pipes, with them under the car will it sound about the same? That was such a sweet sound.

What kind of exhaust? (8/22)
11/30/07 9:16pm

Lynne73
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Easton, PA - USA

Vette(s):
1973 Coupe 350 Auto.T-Tops L48,65450 miles.

Joined: 11/6/2003
Posts: 232

I have chambered on mine. Love the sound. Mellow at cruising speed.

Dave

What kind of exhaust? (9/22)
11/30/07 9:35pm

rearn2go72
Former Member
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Bladenboro, NC - USA

Vette(s):
1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.

Joined: 1/22/2006
Posts: 1058

[QUOTE=bio11]Does the Chambered System use the same brackets, Mr Mako said something about a transmission bracket? I had a 68 435HP convertable in high school that had chambered side pipes, with them under the car will it sound about the same? That was such a sweet sound.[/QUOTE]

I can't tell you anything about the brackets but having had a couple of factory side pipe cars, I can tell you that the sound is the same at the rear of the car. It's sounds different to the driver because the exhaust isn't right at your left ear.

What kind of exhaust? (10/22)
12/9/07 11:20am

MrMako
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WALL TOWNSHIP, NJ - USA

Vette(s):
1969 350 4-speed L46 fathom green Coupe w/AC 134a conversion, Steeroids rack n pinion ENGINE-3970010,K0120CKB TRANS-19S733177,P9R13b INTAKE-3965577 HEADS -3998993 DISTB -1111493

Joined: 11/4/2003
Posts: 29

The transmission bracket on the original exhuast is for a 2 inch diameter pipe, while the chamber pipes are 2 and 1/2. I forgot to have mine changed. every thing bolted up fine, my only concern over time would be wear at the point of contact on the bracket. You probably can grind the original bracket to fit the new pipes better if you didnt want to buy a new one. The only other reused items are the muffler hanger mounts. I still use the stock exhuast manifolds. The kit I ordered from ecklers included new exhuast tips.

What kind of exhaust? (11/22)
12/9/07 12:08pm

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Joined: 3/31/2007
Posts: 293

I put these on and love them,chambered is the only way to go.

http://www.sweet-thunder.com/

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What kind of exhaust? (12/22)
12/9/07 12:26pm

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Montesano, WA - USA

Vette(s):
had a really nice one. sold it to a good friend. Purchased 2004 custom coupe in Feb. 2009 did not tell anyone here until August 2009. BAD I KNOW.

Joined: 9/27/2003
Posts: 1931

chambered chambered chambered did i say chambered?

What kind of exhaust? (13/22)
12/9/07 1:08pm

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Moses Lake, WA - USA

Vette(s):
1976 L48 4-spd, Mahogany Metalic exterior, Buckskin interior 350ci/350hp, 3rd owner, fiberglass spring, 255/50-16's Torq-Thrust II

Joined: 4/16/2005
Posts: 2134

Since Lonnie is talking about exhaust, I need to put a system on after I get the new motor back in. With chamber exhaust on a coupe, can you carry on a normal converstaion at freeway speeds. Most of my time spent driving is at 70 to 75 mph. Don't want something thats going to give me a headach after a hour. The motor is a 350 with Hooker Comp headers.

What kind of exhaust? (14/22)
12/10/07 1:55am

79rebuild
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Yelm, WA - USA

Vette(s):
1979 L82 4 speed Scat 383 crank 190 cc Procomp Aluminum Heads 202 160 stainless valves GM Powder metal rods Speedpro H860CP Hypereutectic pistons 280 cam hydralic HEI Pro comp 1.6 roller rockers Mighty Demon 750 Sanderson CC1AP Hedders.

Joined: 7/12/2007
Posts: 356

Man I don't know I kind of wish I had got side pipes now Wink

Wink

. They just look so cool!

What kind of exhaust? (15/22)
12/10/07 9:18am

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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

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[QUOTE=bio11] Does the Chambered System use the same brackets, Mr Mako said something about a transmission bracket? I had a 68 435HP convertable in high school that had chambered side pipes, with them under the car will it sound about the same? That was such a sweet sound.[/QUOTE]

All big blocks used the 2 1/2" exhaust, so the bracket at the trans should work just fine.

When the time comes to replace the exh on the '74, it will be replaced with the undercar chambered system.

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What kind of exhaust? (16/22)
12/10/07 11:29am

bio11
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Oklahoma City, OK - USA

Vette(s):
1972 LS5 Convertible,Auto.Targa Blue with Black Interior.

Joined: 4/1/2007
Posts: 432

Thanks for the answer on the bracket Joel. I will have to find one since it's not on the car now.

Thanks

Lonnie

What kind of exhaust? (17/22)
12/11/07 12:00pm

1969 L46
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Jefferson City, MO - USA

Vette(s):
1969 L46 4 Speed Roadster

Joined: 3/9/2007
Posts: 150

Chambered!!!! They sound so good and free up a few ponies too. A friend of mine with a 78 Pace Car, put a set on his car after he heard mine a few times.

What kind of exhaust? (18/22)
12/11/07 12:39pm

gs77vet
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Joined: 3/19/2005
Posts: 385

I had the emission control removed and had straight pipes added, replaced the mufflers with Monza mufflers. The sound is great and according to Eckler's each muffler adds 15 hp and although some say removing the emission control doesn't help the hp, thats not what my 77 says, she flies. Gene (removing the emission control is not legal)

What kind of exhaust? (19/22)
12/11/07 10:17pm

rick d
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williamston, NC - USA

Vette(s):
1969 coupe, 350, m22 trans, ac, black on black,

Joined: 1/19/2006
Posts: 353

I have the chambered exhaust with heddman headers, she sounds sweet, a low rumble in idle and a kicka-- roar when I get into it,I got them from Eklers,,all hardware came with them, just a little welding for the brackets,,you will love it,,rd

What kind of exhaust? (20/22)
12/12/07 12:14am

scott78
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fortlauderdale, FL - USA

Vette(s):
1978 greenwood custom vette, 468 blower motor side pipes.

Joined: 3/15/2004
Posts: 288

Cmon !! What is cooler then shiny 4 inch sidepipes that get to be about 1000 degrees. Ouch !!

Look really good, sound really good, be careful if you do not have a protective shield. You can't go wrong either way.

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What kind of exhaust? (21/22)
12/12/07 4:09pm

bio11
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Oklahoma City, OK - USA

Vette(s):
1972 LS5 Convertible,Auto.Targa Blue with Black Interior.

Joined: 4/1/2007
Posts: 432

I think I'm goin with the 2 1/2 chambered with my Heddman Headers. Now the next question is who to buy from. It looks like Ecklers is about $450. and that includes tips. Mid America is $300.00 and no tips, I saw some on Ebay for $300.00 no tips. I'll keep looking and if anyone knows of a better deal or someone else they are happy with let me know.

Thanks

Lonnie

What kind of exhaust? (22/22)
5/26/08 6:28pm

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PERRYSBURG, OH - USA

Vette(s):
1975 T-Tops,Lite Custom work,Many engine mod. 700R4 trans. body is shaved,17" wheels bf goodrich g-force tires,heavy sway bars front&rear rack&pinion steering,550 slolom springs with gas shocks.

Joined: 4/23/2004
Posts: 317

I got mine from MAM. I'm not done with them yet. I'm having a little trouble trying to figure out which side is which. I don't have the stock crossmember in it and it's a little tricky as there are no instructions that come with them. I being very annall about ground clearance as my car is lowered about 2" that don't leave much room for error!!!
If one of you guys have a photo of the underside of your chambered pipes-I sure would like to see them.

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