Magnaflow 11229 14in
or the magnaflow 22in
Is the 14in that much louder?
This is the sound i'm looking for

TBSS with 12229 Magnaflow muffler and no resonator. - YouTube
Trailblazer SS TBSS magnaflow 11229 muffler and resonator delete - YouTube

Still on stock manifolds and Ypipe. Gonna keep it stock will be selling soon just want a little rumble

 

14" with stock piping and manifolds IMO.

 

Do the 11229 and ditch the resonator. That's the first set up I ever had on mine and it sounded good

 

I have a 14" single 3" in/out. I like the sound a lot, different than the crapmaster everyone seems to use. It got louder over time. When it was first installed it was pretty quiet, took some time to "break in", or maybe I was just used to the open y-pipe that it had before. It has a little drone on the highway so it can get a little annoying on long trips. Stock manifolds and y-pipe here too.

 

I'm running a dual setup with these. Long tubes and no cats... drone is pretty bad on the highway... the thing ROARS at WOT. I'll probably end up getting bigger magnaflows. Only reason I got them was they were cheap one day on Amazon.

 

14" will probably give you a good rumble all the time, maybe some drone on the highway. 22" will sound like stock around town, but have a nice sound when on the gas.

 

Made the upgrade myself from the 14 to the 24" I believe. 14 was to loud for me with headers and no cats. But I like mine quiet...So I have one for sale as well

 

This is mine with the 30". As you can see its really tame until the wastegate opens. Moving more air makes it louder too, so the more power your setup has the more muffler you'd want to tone it down at WOT.

Jake Turbo gmc sierra launch - YouTube

 

lovin the baby 4,8

no blow off valve on your truck?