Technical Muffler advice

I've had my Coupe for 31 years.

First 10 I had Super Trap mufflers welded to the outside headers which stopped at the front of the door = Loud and stinky.

The 2nd 18 years I had 24" Cherry Bombs under the car that stopped at the rear axle = Good sound and acceptable
noise level, we could talk with some elevated voice levels.

My current version is under chassis style headers with 2-1/2" straight pipe exhaust all the way to the rear of the body and although it's loud behind the car, inside it's really decent. The reason I don't have any mufflers is that I built the car so low and only could squeeze 12" long glass packs in there and I don't feel there would be any real benefit in noise reduction. If I had the room, I'd use 36" long Cherry Bombs.

 

Another vote for Hushpower II's. I use the 12 inch version under my 32's. Good rumble with no drone.

 

Brockman mellowtones. 22 inches long ... but changing to 12 inch. The long ones are too quiet for my liking

 

I am wrestling with a loud exhaust too. I tried to eliminate noise with new longer exhaust hangers. Then, I tried insulating the trunk. I tried two Borla 40658 on the 1946 coupe. They are quiet on the hwy but a little too loud for around town. I like the Borla quality. At 73, I sometimes I think I should have went with Walker Quiet Flow 3.

 

My uncle would make his own mufflers.
He used belt rollers from the coal mines.
Welded whatever size ends he needed.
Sounded good

 

Use a Big-Bore single exhaust with a decent muffler.

After hanging around "road-racing cars" my whole life, any street V8 with dual exhaust sounds like a Farmall tractor .

 

I had spin tech on an OT car and it rusted to bits within 3 yrs, driving in salt which most rods won't encounter. And drone isn't always eliminated by pipes out the rear, ask any LS1 fbody owner. LM1 drones bad enough to make you look forward to going to the dentist just to hear that wonderful drill....

 

I’ve used FM 70 series with circle track augers in front of them. That really helps with interior resonance. There are deflectors available to rivet in front of the end tips too.

 

Jimmy, (or anybody)

Please fill me in on these as I've never heard the term.

Thanx.

 

Summitracing.com search “exhaust auger”. I use the Patriots, slide them in the exhaust pipe in front of the muffler, cut a slot or 2 in the pipe and mig weld in the slots..
The other company sells the welded in a piece of exhaust tubing for more $$$$$. Speedway also sells them.

 

I tend to buy the polished turbo mufflers Summit sells. Cheap enough and they look good.

 

I used Stainless Works mufflers on my roadster.
https://stainlessworks.net/vintage-round-style-muffler-stainless-steel/
I'm happy with them, but I've never had any others.