Quietening exhaust on 05 Silverado Crew Cab

relentless85 · April 1, 2020

I know this is a strange topic but i am looking for something to quiet down my exhaust. I have 2 kids now that are young and yes....I am getting older and don't want something as loud.

I don't want to spend a boat load of money on a new system. My goal is to add something like a resonator to my current system to quiet it down....not to the point where it sounds stock, but more of a refined when you get on the gas you know its there but just cruising or idling, a little quieter.

My truck is an 05 Silverado Crew Cab with 5.3L, 4.10 rear end gears and a Gibson dual sport exhaust system. According to the specs on the muffler, it is around 24 inches long and 8 inches wide. It is a single 3 inch in and dual 2.5 inch out. The tips run out to the passenger side where the stock tailpipe would normally be.

In the cab it is fairly noticeable during street driving, there is a small amount of drone in the cab due to the 4.10 gears at 2000-2100 RPM at 65-70 MPH, this is where i want to take the edge off at.

My thought was is to maybe install something like a vibrant resonator in front of the muffler to try to take the edge off it a little. Also, I am toying around with removing the tail pipes and tips and dumping it...however i don't want to make it louder in the cab.

Any thoughts on installing a resonator before the muffler on the setup i currently have? OR a quiet single in dual out muffler that can be dumped that sounds refined and not so quiet it sounds stock and NO drone (I know i'm asking for a lot) before or after the axle? When i had my F150 5.0L V8, i removed the front resonator before the stock muffler and it sounded great, just the right amount of sound with no drone....this is what I'm looking for in my Silverado.

CamGTP · April 1, 2020

I would have no issues with trying a resonator before the muffler.

When I had a cat-less y-pipe with just a single magnaflow muffler to a dump over the axle it was stupid loud inside the truck and the rasp was way too much for me. I bought a vibrant resonator and welded it directly in front of the muffler. Tossed some paint on the welds afterwards and it took away practically all sounds I wanted it too. Could drive it around town and on the freeway with no problems.

relentless85 · April 2, 2020

On 4/1/2020 at 4:29 PM, CamGTP said:

I would have no issues with trying a resonator before the muffler.

When I had a cat-less y-pipe with just a single magnaflow muffler to a dump over the axle it was stupid loud inside the truck and the rasp was way too much for me. I bought a vibrant resonator and welded it directly in front of the muffler. Tossed some paint on the welds afterwards and it took away practically all sounds I wanted it too. Could drive it around town and on the freeway with no problems.

I can't decide if i want a Vibrant Ultra Quiet 1142 resonator or just the standard bottle style 1794 resonator. Do you remember which version of the resonator you had? The ultra quiet or standard version?

CamGTP · April 2, 2020

I bought the ultra quiet resonator. I wanted the bigger body figuring it helps more.

KARNUT · April 2, 2020

My 92 Chevy has a blown stroker. Headers, dual 3 inch exhaust with flow master exhaust and short glass packs at the back bumper. A nice rumble at cruise. Not loud at 2K cruising RPMs. If I wanted quieter I’d simply lengthen the glass packs.

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