Quiet muffler recommendations

[peats]

I had to add resonators on my k5. That did the trick.Actually found some resonator tips in stainless that look good as well.

 

[Keith Seymore]

A couple more options from the Pontiac community: they are telling me Pypes Turbo Pro, or Dynomax 17749 Long Case Super Turbo.

K

 

[89GMCJimmy]

I removed my "quiet magnaflow" too loud for me. Replaced it with a large dynomax super turbo

Super Turbo™ Mufflers - DynoMax® Performance Exhaust

DynoMax® Performance Exhaust is a leading brand of stainless steel exhaust systems, cat-back systems, axle-back systems and stainless steel muffler technology. DynoMax® Performance Exhaust has a complete line of mufflers, including the Ultra Flo X stainless steel muffler, Ultra Flo Welded...

www.dynomax.com

No drone and very pleasant

 

[skysurfer]

I removed my "quiet magnaflow" too loud for me. Replaced it with a large dynomax super turbo

Super Turbo™ Mufflers - DynoMax® Performance Exhaust

DynoMax® Performance Exhaust is a leading brand of stainless steel exhaust systems, cat-back systems, axle-back systems and stainless steel muffler technology. DynoMax® Performance Exhaust has a complete line of mufflers, including the Ultra Flo X stainless steel muffler, Ultra Flo Welded...

www.dynomax.com

No drone and very pleasant

Same here. Installed a Dynomax ST when I got the burb 23 years ago. Needed something quiet since any excessive noise comes up right into the passenger area. If it ever wears out I won’t hesitate to get another one.

 

[louu]

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[JohnRod]

I 2nd the old Turbo style mufflers. have a set on my 67 C-10 panel tk. at idle they sound good. in motion, no noise at all. an old days test showed they were the best all-round. mine are Cyclone [which prolly arent made anymore]. Thrush very close. life may be dependent on weather.
Rod in AZ.

 

[1lejohn]

The super turbo type for the win. Jegs and Summit have their own brand for cheap. I'm running a pair of them on my truck . Headers and duals exiting behind the wheels.

 

[TJ1978]

Hush Thrush™ Muffler

Thrush® Exhaust Since 1966...

www.thrushexhaust.com

 

[JimmyJay]

I removed my "quiet magnaflow" too loud for me. Replaced it with a large dynomax super turbo

Super Turbo™ Mufflers - DynoMax® Performance Exhaust

DynoMax® Performance Exhaust is a leading brand of stainless steel exhaust systems, cat-back systems, axle-back systems and stainless steel muffler technology. DynoMax® Performance Exhaust has a complete line of mufflers, including the Ultra Flo X stainless steel muffler, Ultra Flo Welded...

www.dynomax.com

No drone and very pleasant

I had magnaflow on my last truck and I had to add resonators to reduce the drone. Won’t do those again.

I agree that turbos are the way to go and add resonators if you want it even quieter.

 

[yevgenievich]

Removed large body magnaflow on my tahoe. Ended up with resonators, large body diesel mufflers, and another set of spiralflow mufflers to get it where can actually hold a conversation inside

 

[89GMCJimmy]

Looking for options for quiet mufflers for my 84.

Has headers and 2.5” exhaust. Ones on there now are way too loud. There when I got the truck. Headers are staying.

I’d be happy with stock sounding mufflers if I can find ones that will slip right in place of what’s there now once I measure them. What’s there is new, just too loud. Especially on the highway.

Thanks
Codfish

What did you get are you happy with them?

 

[codfish]

Scoots1

JUST back from 2 week turnaround with work. Still haven’t ordered anything yet. Gotta measure the length of what’s on there now to hopefully get a bolt in replacement. Mind are virtually brand new and only clamped in place so hopefully they come apart easily. It’s a long run of straight pipe leading into the mufflers so I can always go with a longer muffler, which the quieter ones seems to be.

I’ll post up here some results/ opinions once I get something on it.

Cheers
Codfish

 

[codfish]

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[codfish]

Went with the Walker Quiet Flows. Not a huge difference at idle, but much better driving around. Those videos were taken on different days, with the Flowmaster video on a warm engine, and the Walkers on a cold start. I’ll probably do another video on a warm engine with the new mufflers for a better comparison.

Codfish

 

[SirRobyn0]

You said quiet. The quietest muffler would be the factory muffler. Most likely no longer available, look for a newer truck GM muffler. Certainly not the cheapest or even the best flowing muffler, but GM engineers get paid lots to design a muffler that is quiet with good flow.

Something maybe on a late model for a 5.3L that fits your requirements.

Walker still makes an OEM equivalent 18171, 17845 are the most common ones for these trucks, and can be run as single or dual mufflers. Or 18191 for single exhaust with dual outlets, which was OEM for my truck and is what I'm running. Yes they are quiet.