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After Market Muffler Question

L82 Shark

Active member
Joined
Nov 1, 2007
Messages
31
Location
Thompson Falls, MT
Corvette
1979 Red L-82
Hi, I currently have the back "Y" pipe and mufflers out of the car while I replace the spring and "U" joints. What I need to know is if I wanted to replace the mufflers for more of a roar on acceleration but would be very civil at cruise speed, what do you recomend and where can I get them? If they are too extreme I will hear about it from the boss.:rotfl I also need them to look stock on the outside.:eyerole
:beer Thanks
 

Vette79

Well-known member
Joined
Jan 23, 2007
Messages
1,392
Location
Millersville, MD
Corvette
1979 L-48 Black Coupe
Flowmaster and DynoMax are a start. You can get them online or at most custom exhaust shops. Bring them up online and take a look to figure out what type you want. There are audio clips you can listen to to help you decide. I'm sure there are some other manufacturer's you could go with while maintaining a stock appearance. Someone else will mention some others.
 

USNA1969

Well-known member
Joined
Sep 12, 2005
Messages
93
Location
Maryland
Corvette
1972 Big Block/4-Speed
I put Flowmaster D50's on my 72, but now i'm thinking of switching to the D40's. The D50s are, imo, too loud for my residential neighborhood, although they sound great on the boulevard. I listened to the audio clips on line, but they only give you a sense of the sound, not the volume.
 

L82 Shark

Active member
Joined
Nov 1, 2007
Messages
31
Location
Thompson Falls, MT
Corvette
1979 Red L-82
Thanks for the info. I just went to the flowmaster site and according to their chart the 50 series should be softer in sound than the 40 series.
;shrug:bash I guess I will just stay with what was on the car till I hear one set up the way I want it. I am lost right now.
 

Crimson Thunder

Well-known member
Joined
Dec 16, 2001
Messages
814
Location
Orange Park FL USA
Corvette
1970 Marboro Maroon Convertible
I have the Flowmaster Delta Flow 50's on my car and love them.(although now i want side pipes)They have a deep sound but are not obnoxious.The 40's are definitly louder than the 50's.The 40's are the old 2 chambers and the 50's are the old 3 chambers.
 

L88 crazy

Well-known member
Joined
Oct 20, 2003
Messages
76
Location
home
Corvette
1972 Blue T top
I got two for ya. Dynomax Super Turbos and Summit Racing brand Turbo mufflers. Dynomax Super Turbos have some throat to em but are expensive compared to Summits. The Summit mufflers are part number SUM-630225. Haven't tried these myself but sound good in some youtube videos. The Summit mufflers are more stock looking than the Dynomax mufflers. Mount the Super Turbos with the logo facing up and it'll look stock. I'd go for the Summit ones cause they look stock, bargain price, and won't get louder over time.
 

L82 Shark

Active member
Joined
Nov 1, 2007
Messages
31
Location
Thompson Falls, MT
Corvette
1979 Red L-82
I have not made a decision but I was wondering what folks thought about Magnaflow mufflers.:eek:hnoes If I get the Flowmaster 40's who has the best deal on the internet that you know of and what is the part number for my 79 L-82.;shrug
 

Koop

Well-known member
Joined
Mar 16, 2005
Messages
545
Location
Kalifornia
Corvette
YELLOW 69 modified GM Crate ZZ383, LS2 TBSS
Sorry in advance to all the Flowmaster followers.

I've had Blowmasters, they put way to much noise inside the car. I'm currently running magnaflows on my Vette and my LS6 Cadillac, the Magnaflows put the sound out the back (good design) and in everyone elses face which is where the sound belongs. They are quite at cruise and LOWD when you step in it. I got pulled over in my Vette by a Cop that wanted know what kind of pipes I was running so he could put them in his Chevy (I was WOT, luckily he didn't write me for hauling azz). My LS6 sounds like a friggin' race car when I'm blowing someones doors off.

Flowmasters make you feel like you are sitting inside a drum compared to the Magnaflows. They make long trips much, much longer. I'll never, ever put them on a car again.

My Dad had them on his ZR1, we hated them on that car as well.
 

72VETTE454

Well-known member
Joined
May 30, 2004
Messages
82
Location
MI
Corvette
1972 Convertible LS5 4spd
I'm personally not a Flowmaster fan, and I don't think that I'm THAT old. Anyway, I put on a set from Paragon, they are listed as "off road" mufflers. Of course, meaning race track as opposed to 4X4. They have one less baffle than stock. I absolutely love them. I don't know what model Flowmasters I had, but I couldn't stand the noise. These have a nice sound for cruising, and sound pretty cool when I get on it.
 

wallyknoch

Well-known member
Joined
Nov 9, 2002
Messages
457
Location
Dearborn
Corvette
One owner unrestored Black 1962 FI Corvette
Well all the choices are above and I have sold them all. If you want quiet and power your best bet is Walker direct fit. They actually had a lifetime warrantee with them. The next choice is also by Walker sold under the Dynomax brand. These are the best of the universal mufflers for both sound and power. The other universal mufflers, flowmaster, megaflows ect. are extremely noisy. Your not told this and they dont take mufflers back. Popular with Mustangs and Camaros and in my opinion not worthy of a Vette installation.
 

Koop

Well-known member
Joined
Mar 16, 2005
Messages
545
Location
Kalifornia
Corvette
YELLOW 69 modified GM Crate ZZ383, LS2 TBSS
Well all the choices are above and I have sold them all. If you want quiet and power your best bet is Walker direct fit. They actually had a lifetime warrantee with them. The next choice is also by Walker sold under the Dynomax brand. These are the best of the universal mufflers for both sound and power. The other universal mufflers, flowmaster, megaflows ect. are extremely noisy. Your not told this and they dont take mufflers back. Popular with Mustangs and Camaros and in my opinion not worthy of a Vette installation.

The Magnaflows are only noisy when you stand on it, I found the flowmasters to be headache in a can with high levels of resonance and interior noise at most times. Since I've had both, I know this to be true. I had Dynomax mufflers on my car for few days, I took them off directly because they were way to quite (almost stock sounding).

To each his own.
 

wallyknoch

Well-known member
Joined
Nov 9, 2002
Messages
457
Location
Dearborn
Corvette
One owner unrestored Black 1962 FI Corvette
Heres Walker Dynomax on my 67 L78 Camaro as there are no direct fit mufflers for the pony cars.

I have this all screwed up but you can get the general idea. What you hear is horsepower not objectional noise. :upthumbs




 

milo30

Well-known member
Joined
Dec 20, 2007
Messages
128
Location
Dallas, Tx
flowmasters

I love my flowmasters but they do give you a headache after awhile. In my car forget about listening to music or using a cell phone but I wouldn't trade them for anything else LOL.
 

minifridge1138

Well-known member
Joined
Feb 2, 2007
Messages
908
Location
USA
Corvette
1982 Black Fastback
I have Flow Masters on my Vette and i am happy with them. I would like something with a deeper rumble.

I have Dyno Max on my Mustang GT. They a lot louder. I tend to set off car alarms when i start it. Too loud in my opinion.

I didn't buy the mufflers, so I can't tell you which type are installed.

I would recommend going to car shows or Corvette Club meetings and talking to people. Listen to cars running, find the sound you like, and ask the owner what is on the car.

Good luck!
 

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