Opinions on best sounding exhaust???

[Scot_Douglas]

Originally Posted by Sicboy

I just put Speedway's Tru-Rams and Brockman (steel packed) Mellowtones on my freshly rebuilt 327. Awesome 60's muscle car sound. I went with 24" 2-1/2" inlet/outlet. They are a little too loud so I'm replacing them with 36" Mellowtones.

It was your "Pabst" post that turned me on to those Tru-Rams.

You guys are giving me plenty of options to research!!!


Thanks so much!

[1Bad62Pro/Street]

Scot_Douglas,

Since you have a 377 Stroker engine, what are the specs on your engine? Cam lift/duriation,, Heads, Etc.
I know it's a 400 block with a 350 crank. . .destroked.
The exhaust will always sound different acording to how your engine is setup and tuned as well as the headders lenghts, X-Pipe -and/or- H Pipe, size of exhaust tubes, back pressure etc. I am having exhaust cut out put on my truck as well to strike fear in the local rice burners......
The results in HP order:
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq

Sound Off in Quietest to Loudest (Decibels):

1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).

http://ls1tech.com/forums/generation...al-street.html

[BMSJaX]

I just put on a pair of 2.5" Thrush welded mufflers and they sound great! Just like I think a muscle car should sound like. I have the mufflers just behind the cab and they dump out the sides before the rear tires. At first they are very loud and deep but after you run about 100 miles on them they mellow out and give a great sound. And they are only $29.99 each from summit! Beats the price of flowmaster and magnaflow for a sound that I think is much better.

[Scot_Douglas]

Originally Posted by 1Bad62Pro/Street

Scot_Douglas,

Since you have a 377 Stroker engine, what are the specs on your engine? Cam lift/duriation,, Heads, Etc.
I know it's a 400 block with a 350 crank. . .destroked.
The exhaust will always sound different acording to how your engine is setup and tuned as well as the headders lenghts, X-Pipe -and/or- H Pipe, size of exhaust tubes, back pressure etc. I am having exhaust cut out put on my truck as well to strike fear in the local rice burners......

This is all I know about the motor until I tear into it to give it a good once-over:

- 350 block STD bore and a 400 crank machined to fit the 350 journals.
- 5.565" rods and STD 350 pistons
- 4 bolt main block with fresh cylinder hone
- Hydraulic flat tappet cam, 224 Int/ 234 Exh @ 0.050" lift
- All new bearings and gaskets.
- Heads are GM 882 casting with mild port and polish job,76cc. 9.5:1 compression, with 2.02/1.60 valves
- Intake is gasket matched to the heads

['72customdeluxe]

Please no Flowmasters. Longtubes, 2.5" piping, x-pipe and a straight through muffler. Magnaflow, Dynomax Ultrad Flo, and most Borlas are straight through. This type is quiet when cruising without resonation and really open up with the throttle.

[LoRollinLS]

u can still get the 40 series, just make sure that you get the delta flow 40 series, they are made specifically to keep down interior resonation...and as long as your gonna have tail pipes behind your muffler there should be even less cab noise/resonation....im surprised no one said this before now

[Captainfab]

Uummmm they did

Originally Posted by chris6499

on the flowmasters if you get the delta flows it reduces the resonance in the cab both of my daily drivers have flowmaster 40 series delta flows and they sound good and dont resonate on my 64 i have spin tech and they are loud all the time

Originally Posted by LoRollinLS

u can still get the 40 series, just make sure that you get the delta flow 40 series, they are made specifically to keep down interior resonation...and as long as your gonna have tail pipes behind your muffler there should be even less cab noise/resonation....im surprised no one said this before now

[kdrodworks316]

I'm getting fond of the open headers sound on my burban, when it will run, but thats another thread.....

[jgh64pkup]

i say go with pypes
either the race pros or the violaters

[LoRollinLS]

my bad, i misread

Originally Posted by Captainfab

Uummmm they did

[Imperial Kustom]

Hooker Aerochambers have every quality you are looking for!!!! They are awesome.

[19GMC63]

+1 on the brockman mellotones, if you like the 60's sound. They can build you a pair to order, glass or steel packed, and in various body lengths. Muffler placement is a key with these though. The short body lengths are real popular with the traditional hot rodders who like the off-throttle rap.... I've heard reversing them increases this also. The longer body lengths are nice and mellow with little to no rap... it's a unique sound that doesn't get annoying.

[1Bad62Pro/Street]

Patriot Exhaust Patriot Smithy Mufflers

YouTube- Hotrod Chevy 39 Coupe Race

http://www.summitracing.com/search/?...muffler&RC=100

[Scot_Douglas]

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^6

I think that's the sound!

[1Bad62Pro/Street]

Here you go!!!!!


Patriot Exhaust Patriot Smithy Mufflers
http://http://www.google.com/product...lers&scoring=r

['72customdeluxe]

I may be mistaken, but i'm pretty sure those Smitheys have tiny little cores that will choke a 383. Bad. If you want the glasspack sound, look into the "walker/dynomax/thrush" style. They have a straight through perforated core with no louvers and will give you that flappy raspy tone. Here are some, they come in alot of pipe sizes and lengths. Cheap too. http://www.summitracing.com/search/S...rush+glasspack
They have stainless ones aswell on that link

[brawley]

Cherry Bombs ??? anybody tried these

[1Bad62Pro/Street]

Cherry Bomb Glasspacks

YouTube- History of Cherry Bomb Glasspacks on...

[Hilandr451]

Originally Posted by Baby Blue 66

I just put magnaflows on my 66 with a vortec 350, headers, dual 2.5" with H-pipe, dumped after the rear axle. Very mellow from idle to about 3,000 rpm and then bam! they really snort after that.

Ditto. I have the exact same set-up on my '66 C20. My pipes exit out at 90 deg just past the rear wheels.

Nice mellow sound in the cab, but I have gotten lots of complements from my friends at work on the deep throaty sound. They tell me my truck "sounds fast".

[Bazooka]

Everything you need to know right here. 3 pages long... scroll to very bottom to go to next page..

http://www.pontiacstreetperformance....p/exhaust.html

PS Flowmaster sucks