Jstnelson

Just an update after driving a few hundred miles; clamping the resonance free pipe is a definite sound improvement. I highly recommend a Flowmaster super 40 and clamped mesh inserts. It gives a great tone outside the truck and, while driving, you can clearly hear a good V8 exhaust tone with no drone at all and still pretty silent on the highway. There are a couple speeds that you can steadily hear an exhaust tone while cruising but it never drones/resonates within the cab. Revving the truck with stock exhaust sounded like a vacuum cleaner. Revving with Flowmaster Super 40 and stock axle-back had a good tone but sounded like someone was holding a pillow over the tips. You could convince me it was a stock exhaust if I didn’t hear a cold start. Revving with Flowmaster Super 40 with closed off mesh resonators sounds loud and mean. Definitely sounds aftermarket.

I installed my sleeve clamps last night and drove it to work this morning. It’s definitely a little louder. I can hear a little tone at idle from inside the truck now. It used to be almost silent at warm idle. I like it. Took it from about a 4 to a 5 on the loud scale. And still absolutely no cabin drone. 2.75” clamps are too big for stock exhaust though. I’m going to get some exhaust patch tape and place that over the mesh and tighten the clamps back over that to get a tight fit.

Haha, nice. I contemplated doing something similar first. My clamps were delayed and arrive tomorrow but i’ll be putting them on ASAP.

Nice. It looks like they do decrease sound dB quite a bit.

Yea, my thoughts exactly. I’m going to cover them all then, if there’s unwanted drone, I’ll take 2 off and experiment covering 4 in different locations. I received the clamps yesterday and they sent me the wrong size (2.25” instead of 2.75”) so I’m expecting them Tuesday now

Well, If the $60 clamps work, they’re my permanent solution and a simple install; rather than buying hose clamps and cutting up cans just to test it lol. I ordered 6 of them from Amazon. So I’ll let everyone know how it goes.

Haha, I just found that video and came back here to post it. I’m going to order some exhaust sleeve clamps from Amazon. I figure I can clamp them all closed and test it out. If there’s unwanted changes I can remove some or all of them. I’ll report back. The clamps are $10 a piece so I can’t decide if I want to order 2 and make sure it works well or order all 6 lol

I agree that’s probably the case. If I do find out there’s something cased within the piping, I’ll report back.

I’ve thought about trying some temporary hack like that. I’m curious if there is anything inside the pipe as well though. If there is some kind of obstruction within the piping, I’d just get the pipes replaced. But if it’s just hollow pipes with mesh cutouts, I’ll seal them up. I think ill I’ll deconsruct a wire clothing hanger and stick it through the tailpipe and see if I hit anything lol

Has anyone had luck closing off the mesh resonators? I just bought a new Silverado Friday and had a Flowmaster Super 40 installed yesterday. I looked under the truck and didn’t see resonators so I thought it would give me the sound I wanted but it’s sooo quiet. It has a great tone but even a cold start is quiet and you can still hear that stock vacuum cleaner sound when you rev it, along with a muffled good tone. I wanted mild but this still feels like what stock should sound like.