1978Vette

Topic says it all thanks in advance looking to add some 40 series to my stock set up .

derv3tt3

I added stainless steel pipes and steel lifetime mufflers from Allen and they are plenty loud. ;)

MN 72 454

A friend from work has a 78 with true duals and flowmasters. I don't have any audio from it but I can tell you it sounds pretty nice. Around town it's perfect, but on the highway it gets to be a little loud. It still sounds nice but it gets to be a little annoying. With a converter in front of them they would probably be nicer at highway speed.

hudman

Summit has the 40's on sale for $51 right now. Just ordered a pair myself.

1978Vette

yeah i was thinking it might not be to loud since it runs threw the cat ohwell i will find out next week just wanted to see what it would sound like.

thanks.

RLaFarge

I am supposed to get my 79 back tomorrow with true duels with 40s on it. I have ran the 40s for a while now and I love the deep rumble it has. It is going to be interesting to see how it is going to sound with headers, no cats and two pipes... If I can figure out how to post it I will post a sound file. :party:

bronctwo

I have an 81,dont know what difference there might be exhaust wise.I had true duals put on with the flowmasters, I went with 2 1/2" pipes all the way,does have the cat converters inline,they sound great,higher the rpm better the sound.They recently dropped the emmisions requirments in my part of florida,so I beleive the cat's will be coming off soon.However, they will never sound as explosive as my wife's LT4 with allens stainless chambered,nothing but pipe! :steering:

Alwyn678

http://www.exhaustsoundclips.com/gm.html

There you go

HDFLH67

I didn't see Flowmasters available for C3 on their web site. Is it a custom install then?

They have sound clips on the website too.

bronctwo

I went to a local muffler shop that is well known for performence setups (Rainbow Mufflers 2747 38th ave north,St Petersburg FL. 727-547-1001) Got the true duals 2 1/2" pipes all the way back,cat's,Flowmasters and labor just under $500.00.They sound great,higher the RPM better the sound,however they can never match the explosivness of my wifes LT4. It has "Allens"

chambered stainless,nothing but pipe.She hits the gym five days a week at 5:00 am,she's been called the neighborhood alarm clock.It's taken three years but I think they are used to it now. :lol: :lol:

mvftw

Just installed true duals and s/s flowmaster50's :D


[Modified by mvftw, 9:18 AM 8/29/2003]

Ice_Fire

I just got my 77 fitted with a new exhaust system. I also was looking into the flowmasters but the shop advised against them as there was not enough clearance for them.
My 77 now has a set of Rhrino's installed and I upgraded the exhaust pipes from a 2" to a 2 1/4".. Sounds REALLY NICE :) When you apply a little gas you can hear the power though these babies. :thumbs:

Pauld

I have just fitted true 2 1/2" duals to my '81 and have the stock mufflers on at the moment, do flowmasters sound much different and do they improve performance. Also how much do they cost?

bronctwo

I have them on my 81,with 2 1/2" sounds great,more RPM better sound.I called the shop that I had mine installed at,they sell them for $89.99 each.... but with flowmasters no clamps.They must be welded! As far performance I dont know,I sure have better pickup? Im sure the combo of 2 1/2" pipes,true duals and those mufflers.

76Frankenstein

As Hudman stated above, Summit has a price of $51...

7T9Shark

Please post the link to those $51 mufflers. I can't find them on Summit's web site anyplace.

OK, I found 'em. Thanks Frank....


[Modified by 7T9Shark, 1:50 PM 8/30/2003]

76Frankenstein

Try:
http://store.summitracing.com/defaul...er+40&x=16&y=7

About 5 parts down on the list, #FLO-42541


[Modified by 76Frankenstein, 10:24 PM 8/29/2003]

Alwyn678

It is not gonna sound that much different on a stock car....As you are not making very much power at all. I would think any increase in power would be minimal...You need heads cam and headers to really change the car