Hey guys i got the v6 4.3 and i was wondering what kind of aftermarket muffler sounds the most aggressive? Looking for deep thundering sound.

 

Have you tried checking out Dynomax? This muffler is louder than stock, will increase the flow, and is budget friendly.

 

Alot of people hear like the flowmaster supper 44. I just put this one on and like it a lot. deep blub blub blub sound and not ricie sounding. put 2.5 all the way out the back which I think helps with the sound

 

I`ve used flowmasters in the past on my 81 malibu.If you go on their web site,they have example`s on how each muffler sounds like.They have between 5-20 different mufflers to choose from.Always used Flowmaster,never ever had any problems with them.

 

And listen with headphones

 

I have a Flowmaster 40 and i love it, they do have louder ones. i think the loudest they have is Flowmaster Outlaw. I dunno if they are street legal thou, but damn they are loud. Youtube it.