You need mufflers, no question about that. Keeping cats helps kill the rasp and crackling. I had planned to pipe out both sides of the truck, but like others mentioned the gas tank really doesn't allow that. Ended up running a dual exit on the passenger side. Long tubes, aftermarket cats, x-pipe, dual spintechs, sounds amazing. Just a tad loud though

 

Thanks guys, i'm gonna go with the bullets and dump it right before my rear axle, should sound pretty good

 

It's going to be loud in the cab...IDK if you have LT's or not, but with those and no cats on mine it sounded awesome, but I couldn't hear myself think haha.

 

i ran mine dumped under my bed for almsot 4 years & it's pretty freakin loud. just added tail pipes in march & not only did i pick up a little low end, but i can actually hear myself think, can talk to people in the truck, can hear the radio, etc

 

run a hooker aerochamber

 

u defanetly need a muffler.. i ran lt headers no cats on two one chamber flowmasters and it was loud.. toooo loud.. and it had real raspy sound... i recently changed it to a dual in dual out magnaflow with side exit infront of the tire and love it.. its got a nice sound when u turn it on and while driving around town its got a low tone but u can hear it nicely. when at WOT o man.. its nice really loud with a great sound.. IMO i love it.. and im running the 28" magnaflow.. its got the built in x pipe.. remember no cats makes a big difference in sound.

 

Aint that the truth, I gutted my cats when I swapped my trans 2 weeks ago and it's like the noise level doubled. I'm currently running StainlessWorks LT's with their catted y-pipe, only gutted, with a 3" si/ 2.5" do Gibson 24" muffler dumped before the axle and it's very loud IMO, and I like loud. I'm only afraid that I'm going to draw unwanted attention to myself. I have a 3" si/so 18" Magnaflow and 3" DMH cutout that I will be installing, only I will be running a Magnafow 3" stainless tailpipe that I will be dumping after the axle, curious to see how it will sound with the shorter and smaller muffler, only run over the axle instead of dumped before it.