Muffler delete too loud

[swathdiver]

Don't get me wrong, I like loud exhausts. I have the Corsa Sport on my 6.2L Sierra and it sounds great. But the muffler delete sound is just not right. It sounds more like an exhaust problem than a nice deep rumble.

Did you also delete the resonator near the tip? I'm thinking GMT-900s, not sure exactly what the K2s have, but 6.2 900s sound great IMO with just the muffler delete while keeping the resonator. Going to do it to ours soon.

 

[Reagan40]

I kept the resonator near the tip.

 

[Reagan40]

Which magnaflow do you all recommend? 14 or 18 or 22?

 

[STORMIN08]

The shorter the louder...I think the stockuffler is close to the 22, ypu want a touch of sound...do the 18.

 

[iamdub]

Which magnaflow do you all recommend? 14 or 18 or 22?

I had the 18" and I thought it was perfect. It's actually a 1/4-priced clone, but same thing. Nice rumble when first started and when idling. Not obtrusive at all in the cabin when cruising and no drone. It had a strong, but smooth roar when on the throttle during acceleration that turned into an aggressive wildcat growl at upper RPMS. It was actually disappointingly tame when I fist got it. But, it quickly "broke in" and was awesome after that. I still have it, just coupled with the 22" version to quiet it down after losing the cats.

I know it's impossible to get a good idea from videos, but I'll throw my comparison ones up just cuz:

Stock with resonator delete:

Resonator delete with AP Xlerator 1259:

Yes- it does sound quieter and more tamer than stock in the video.


Same setup, one year later:

The rest are after the cam, etc. with long tubes and no cats, so they're irrelevant.

I find that these types of mufflers complement the factory sound in note and volume but without trying to change it. Here's a similar muffler that I believe is a 14", on an older 5.3:

Stock:

After muffler and all else stock:

 

[Jeff_]

I had the 18" and I thought it was perfect. It's actually a 1/4-priced clone, but same thing. Nice rumble when first started and when idling. Not obtrusive at all in the cabin when cruising and no drone. It had a strong, but smooth roar when on the throttle during acceleration that turned into an aggressive wildcat growl at upper RPMS. It was actually disappointingly tame when I fist got it. But, it quickly "broke in" and was awesome after that. I still have it, just coupled with the 22" version to quiet it down after losing the cats.

I know it's impossible to get a good idea from videos, but I'll throw my comparison ones up just cuz:

Stock with resonator delete:

Resonator delete with AP Xlerator 1259:

Yes- it does sound quieter and more tamer than stock in the video.


Same setup, one year later:

The rest are after the cam, etc. with long tubes and no cats, so they're irrelevant.

I find that these types of mufflers complement the factory sound in note and volume but without trying to change it. Here's a similar muffler that I believe is a 14", on an older 5.3:

Stock:

After muffler and all else stock:

Thank you for posting this. Very helpful. I’ll need to buy a 18” magnaflow and find someplace competent to install it.

 

[iamdub]

Thank you for posting this. Very helpful. I’ll need to buy a 18” magnaflow and find someplace competent to install it.

It's a really easy splice-in job on these rigs, so any muffler shop worth holding a business license should be able to handle it. Just need the muffler and a ~6" length of pipe to make up the difference. No hanger work or pipe bending involved.

 

[sealandsky]

Corsa.

 

[66GM66]

I had the 18" and I thought it was perfect. It's actually a 1/4-priced clone, but same thing. Nice rumble when first started and when idling. Not obtrusive at all in the cabin when cruising and no drone. It had a strong, but smooth roar when on the throttle during acceleration that turned into an aggressive wildcat growl at upper RPMS. It was actually disappointingly tame when I fist got it. But, it quickly "broke in" and was awesome after that. I still have it, just coupled with the 22" version to quiet it down after losing the cats.

I know it's impossible to get a good idea from videos, but I'll throw my comparison ones up just cuz:

Stock with resonator delete:

Resonator delete with AP Xlerator 1259:

Yes- it does sound quieter and more tamer than stock in the video.


Same setup, one year later:

The rest are after the cam, etc. with long tubes and no cats, so they're irrelevant.

I find that these types of mufflers complement the factory sound in note and volume but without trying to change it. Here's a similar muffler that I believe is a 14", on an older 5.3:

Stock:

After muffler and all else stock:

Love the rims on the Tahoe. What are they ?

 

[iamdub]

Love the rims on the Tahoe. What are they ?

The first two vids are the stock LTZ wheels, but I'm assuming you're asking about the six-spoke ones. They're factory 20" chrome-clad wheels from a 2007-2013 GMC Sierra. I removed the chrome cladding (it's like a glued-on hub cap) and cleaned off the foam and adhesive. Here: https://www.tahoeyukonforum.com/threads/growing-up-doesnt-have-to-suck.93510/post-1353960

Scroll down and you'll see the center cap and lug nut mods following that post.