Mufflers for 350 Chevy (1 Viewer)

[atazman]

Hey guys..... what kind of mufflers do you recommend? I have a 350 CID Chevy, dual exhaust, which is in need of new mufflers. Present ones have a "roar" at trail speeds that is somewhat annoying.

Your suggestions, please.

 

[bikersmurf]

How much space do you have? I'm happy with the 2" turbo mufflers I've bought from the jobber here. They were about $50 each, and I don't cry when I crush one of them. One set were labeled as "Raptor" mufflers. They're oval mufflers about a foot long... All there is space for.

 

[FJsnoozer]

For loud and small with great sound, spintech pros.

For super cheap and super clearance 4-5 inch round mufflers dynomax race bullets.
Or Moroso spiroflows.

Any muffler that is chambered will have a drone at. Specific rpm. A straight flow muffler will have much less

Any turbo muffler will be quiet and usually lower power.

 

[Brian in Oregon]

I'm running both headers into a single Flow-Master. I think it's quiet, but it's hard to hear over the engine and drivetrain noise. At least it's not louder than they are.

 

[lone gunman]

i have always liked the turbo mufflers, quiet at low rpm and a nice tone at high rpm but not loud like a flowmaster 40 series. and magnaflow makes a nice product ( The Official Site of MagnaFlow Exhaust Products - Exhaust Systems For Trucks, Suv's, American Muscle, Diesel, & Sport Compact Vehicles ) thats the route i will go when i get mine redone.

 

[bikersmurf]

For loud and small with great sound, spintech pros.

For super cheap and super clearance 4-5 inch round mufflers dynomax race bullets.
Or Moroso spiroflows.

Any muffler that is chambered will have a drone at. Specific rpm. A straight flow muffler will have much less

Any turbo muffler will be quiet and usually lower power.

The turbo mufflers I'm running are quiet unless you step into it.

With a 350, I'm not worried about lower power... It'll spin the rear wheels through 1st and 2nd on dry pavement (even with 2500 lbs over the rear axle).

 

[FJsnoozer]

on my old 5.0, my dynomax superturbo were about 15 decibles quieter than my friends' various 5.0s with flowmaster 2 chambers.

 

[atazman]

Thanks, guys. I'm doing some investigating, and listing to U-tube sounds. My objective is to get it as quiet as possible. Looks like my existing mufflers are 2 1/4" inlet/outlet; oval shape 4" X 10"; 14" body length. Don't have room for much more than these.

 

[Bret]

My Dynomax is very quiet, only rumbles a little when decelerating hard or running with your foot up it's a$$.

 

[DSRTRDR]

Flowmaster is loud

I have a generic muffler that is much quieter - on a 2F, though

 

[atazman]

Bret, can you provide more details on your installation? Dual or single mufflers? Exact muffler you have? I'm thinking maybe a completely new system, and going to single exhaust. I don't need any horsepower benefits that might be gained by staying with dual exhaust.

Maybe send me an E-Mail? atazman at sbcglobal dot com

Thanks.....

 

[Elbert]

I have a dual in dual out single magnaflow muffler (not sure that would work on a 40) but it is reasonable at low rpm and idle but pretty lowd at WOT.

 

[Bret]

I am running a 383 SBC with 2" Rams-Horns, supposed to be 2.5" exhaust but when measured it looks closer to 2.25. They join under the oil pan and go back as a single exiting out the driver side behind the tire at an angle. It is a Dynomax 17748 "Super Turbo" w/2.5" inlet/outlet. Runs out of steam above 4-5K but that is likely because of the cam not the exhaust.

Here is a link to see kinda how they sound.

Dynomax Super Turbo Flow Muffler (17748) - YotaTech Forums

 

[atazman]

Thanks, Bret. That is exactly the information I was hoping for.

 

[FJFOOL]

Mine is similiar to Brett's, but I'm running a 60 series Flowmaster, nice rumble but not obnoxious. Sorry, no sound byte.