AndysC3

iTrader: (14)

I currently have Pacesetter lts, 3" Magnaflow cats and duel 3" Magnaflow mufflers. Would I be better off keeping this system and replacing the cats with cutouts, or get a Pacesetter ORY and have a 3.5" cutout to a single in duel out muffler.
Future plans are 224/230 cam, WCCH LQ9, TBSS intake w/90mm tb, and a procharger at about 8#

dmelvin

iTrader: (8)

I think that most guys are going to say that dual 3" is way too much overkill and you'll lose some low end, you'll want to hear from some of the guys that are putting boost to their motor to be sure, but I think you'll hear that 3.5 is plenty for what you're doing.

zachm89

iTrader: (16)

Go with the single 3.5", ditch the cats and run a single cutout after the y pipe. That's what I'm running on my SSS and I love it. No loss of low end and plenty of flow for whatever mods you do. I'm about to throw on a pc and a cam myself so I'll soon find out how it handles the extra power.

getchusum99

iTrader: (1)

go with the single 3.5

KleenHall

dual 2.5 into the single 3.5, if youre gonna stroke to 400 then keep what you have

AndysC3

iTrader: (14)

The Pacesetter headers already have a 3" collector so I don't wanna choke the exhaust right after the headers, And Pacesetter already makes an ORY.

I think I will go with the 3.5" single. Anyone know of a good sounding 3.5" muffler?

zachm89

iTrader: (16)

If you're going to run no cats, magnaflow 5x11x22 3.5" si/so. Best sounding exhaust I've had on any of my trucks yet. It's somewhat quiet while just cruising around but sounds mean when you get on it. If you wanna be loud throw in an ecutout so you can tone it down and still hold a conversation inside the truck