z71vortec

now im a little confused here... i found 1 clip with a borla proxs (same thing as the turbo even carry same part number) on a 4.8 with stock manifolds and no cats and it seemed fairly quiet and very deep... which is what i want... but i just dont know how it can be so much quieter than what i have now... i have the 15 inch long 5 inch round borla xr1 with a 18 inch long bullet in front of it... so that is 32 inches of muffler... however i know that the bullet is very skinny in case size and so is the xr1... is my exhaust loud now because of these round case mufflers? will going to a 14x4.5x9.5 3 inch si/so center inlet offset outlet really do a better job than what i have now? does the borla turbo have a different perforated tube and internal packing than the xr1?

mando313

im running the borla proxs with stock manifolds and no cats, i love it! its real smooth at idle and cruising, but at WOT it sounds MEAN!

z71vortec

Do you have single or dual?

mando313

1in 1 out. so its a single. my friend has the same muffler but with hi flow cats dual in dual out it sounds pretty good too but mine sounds alot better because im catless

z71vortec

So it's pretty mellow when your just cruising and idle?

GMCSIERRA5.3

Heres a lil clip of mine lt headers full 3 inch all the way to the back into a borla xr-1 the oval one YouTube - Broadcast Yourself.

z71vortec

which one should I get? Center inlet offset outlet, or should I get the offset inlet offset outlet?

z71vortec

Anyone? I would like to buy this sucker today...

z71vortec

Ok I guess not?

03 BLACKOUTSSS

iTrader: (3)

I think you'll be fine with any turbo thats around a 22" -24" case. No one can tell you what its going to sound like, every setup is a little different. I ran a LT ORY Loud mouth into a borla turbo on my TA and it sounded amazing. nice and tame when cruising, but it would wake up the neighbors at WOT. On my truck, I run a LT no cats true dual into a Magnaflow 18" case and its loud as all hell. Too loud.