"Quiet" performance towing muffler for 2008 Silverado 5.3

[FarmerGuy]

Stainless Works makes a muffler similar to the Dynomax super turbo in 304 stainless steel. /https://stainlessworks.net/turbo-chambered-muffler-stainless-steel/ I'm considering it for a project of mine, but I haven't heard what it sounds like yet.

 

[350Rocket]

This^^^^^^^^^^^ Makes sense.

Not only that, the stock exhaust lasts forever. My 2005 has no rot on the original exhaust and it's an Ontario Canada truck. I want a throaty exhaust but I can't bring myself to spend money on something it doesn't need.

 

[weaponoffreedom]

Looking for a "quiet" high flowing muffler specifically for towing application.

I read through this post from 2013, but there are more options to pick from now and that's mainly why I am creating a new thread.
Need recommendations on a quiet 3"in/3"out muffler | Bob Is The Oil Guy

I recently purchased a 2008 Silverado Z71 4x4 Crew Cab short box from a friend to tow a 30-foot camper primarily, and a pop-up camper and 5x10 utility trailer occasionally. A new VIN 3 engine with AFM/DOD delete was put in the truck in early 2021, it's got about 10,000 miles on the clock. And no V-4 mode for this thing!

I'm not a loyalist to any specific muffler or exhaust brand.
Looking for something that flows well for towing that is slightly louder than stock and doesn't have any drone, or minimal drone inside the cab with a slight rumble tone. The transmission will shift into OD on flat or descending roads at 65 mph but most of the time it's out of OD towing the 30' Camper on flat/level highway. Trying to avoid hearing excessive drone at highway speeds given the transmission will likely not be in OD MOST of the time.

Kind of leaning towards the Flowmaster 70 series (or possibly Super 50, also looked at the DynoMax Ultra Flow with the 24” long case) but the videos I have watched/listened to make them sound a lot louder than the noise level I am going for. We live in a pretty decent urban neighborhood, and I don't want to annoy anyone.

Wondering if I combined a glasspack with a chambered muffler if that would get me the sound level and flow that I am looking for... (like a cheaper $30-$50 chambered muffler combined with a Longer Glass Pack case length. this was also discussed in the linked thread above). thoughts on this? And which one would I put after the Cat? The Chambered muffler first then the Glass pack or vice versa?

I had a pair of 3" Thrush 2 chamber mufflers on a '68 390FE Galaxie back in the mid-late '00s and I loved the sound (very close to classic Flowmaster 40 but ½ the price), but at certain engine RPMs the drone was nearly unbearable. I also had 3.50 ratio Traction-Lok in the 9-inch, and that was with a 27” dia. tire, so it would sing a pretty good tune on the highway.

If you have vid clips for a specific muffler, I'd love to hear it. Send em my way.

Flo Pro

 

[c502cid]

Gibson?
This company started out as a mom and pop shop building exhaust systems for RV's and later expanded to trucks. I emailed them several times about noise, etc and they quickly responded with accurate responses. I have their stainless cat back systems on the Ranger, Dodge van and the F150. Also have their SS headers on the Ranger. They are not too loud with improved power. The Ranger system went from a stock 1 3/4" system to a 2" system. The van and F150 systems went from 2 1/2" to 3". I've been very happy with them and I did a lot of research before choosing them.

Gibson Exhaust Systems - Mufflers, Headers, Tips, Metal Mulisha Exhaust Systems for Trucks, SUVs, Jeeps, Muscle Cars, Side x Side.

Gibson Exhaust-a leading manufacturer in cat back performance exhaust systems, mufflers, headers, exhaust tips, metal mulisha exhaust, for trucks, jeep, suv, muscle car, marine and side x side.

gibsonperformance.com

Ron Gibson built an 3" single mandrel bent exhaust system for me when they were just an exhaust shop in Yorba Linda CA...roughly 1996. He had just started his line of straight through mufflers. This was on a 1990 GMC 454 crew cab dually. He was a master exhaust builder, it was a work of art. I waited while he did it too.

 

[GRUMPYDUDE2]

I've run flowmaster, magnaflow, and the super turbo on my Jeeps over the years. I think the Super Turbo is the best option if you want more performance but without drone. They will break-in a bit over time, so even if it is stock sounding when first installed it will get a bit deeper as you put on the miles.

The 17789 SUPER TURBO on my 5.3 is as quiet as the stock muffler on the highway, and never any drone.

 

[OVERKILL]

I had a long glass pack on an 03 avalanche used for towing. It was louder but not splatty, as I used the longest one they had.
It sounded pretty good , was not too loud except at wot.
It did pop a bit coming down steep inclines with the throttle closed, while engine braking.

I'm wondering what to use on my ram, I'm afraid the glass pack on a 6.4 would just be too loud.

The Borla S-type is surprisingly loud on the RAM (it's louder than on my Jeep, but the Jeep barks and crackles/pops) and I'd probably go for the Commuter version if I was having a do-over and it was my vehicle. My wife likes how loud it is, but I find it a bit much at times.

 

[350Rocket]

The Borla S-type is surprisingly loud on the RAM (it's louder than on my Jeep, but the Jeep barks and crackles/pops) and I'd probably go for the Commuter version if I was having a do-over and it was my vehicle. My wife likes how loud it is, but I find it a bit much at times.

My wife is part of the reason I don't replace my stock muffler. I back into the garage and she would notice immediately. She's not into car stuff so she can't understand spending money on something that isn't broken.