X-ray

iTrader: (6)

The sound of my LPP x-pipe is just too much for me in the cabin. I'm going to put my stock manifolds, cats, and Y back on, and put on a catback. I love my car being loud when I'm pushing it, but can't stand the interior noise anymore.

So I want a catback that won't make much noise at 2k rpm or lower, but still sounds good when you open it up. I hear Magnaflows are very quiet, but some say too quiet.

What is your opinion on the best compromise between being both quiet and loud?

senicalj4579

iTrader: (41)

magnaflow or borla

Dr Tran

iTrader: (10)

Borlamouth! No rasp, no drone, super quiet below 2k rpm, wake the dead loud at WOT.

Catback only:
http://www.youtube.com/watch?v=Q3mNgFWGBg0

LT/ORY/Borlamouth:
http://www.youtube.com/watch?v=78pF4EqN9M0

VinR1

iTrader: (17)

Borla with an electric cutout

odarabla

iTrader: (1)

Magnaflow!!!! You can't beat the value for the price!! Awesome sound to man..

67SS&99SS

iTrader: (7)

I had dumped duals with one chambers, then took those off, put on a catted y and a gmmg, and the difference was unreal. The catted y and gmmg are slightly audible at cruise rpm. At WOT, its loud. The quietest catback would probably be the magnaflow or SLP dual dual.

Floorman279

iTrader: (11)

i know its not a catback, but i had a flowmaster 80 series put on my bonestock ls1.......has a beautiful deep muscle car idle, gets nice and deep around 2-3,500....then once i hit 4000+, the car sounds pissed off, really loud and angry sounding......love it......cruising at 80mph at 2000 rpms, you canthear the car......muffler and installation ran me 120 bucks

X-ray

iTrader: (6)

My car came all stock except a Flowmaster welded in by the original owner. I don't know what series it is, but it actually sounded really good. But it did have some interior drone, and I want a better flowing catback, so I'll look into one of these catbacks. Keep your opinions coming if you have anymore because I'm still deciding on which one.

TheSilverOne

iTrader: (22)

except the 80 series muffler holds hp back

MikeWS6

My setup isnt much louder than stock at idle, and under normal driving. WOT gets pretty loud.

nc2000ls1

iTrader: (1)

Ive got a flowmaster catback and it sounds good at idle loud under wot and barely hear it cruising at 70

TImmy_Jones

iTrader: (4)

You own a performance car, time to trade it in and get a Civic.


















In all honesty man, keep the exhaust you have now, add a Hooker muffler (VERY VERY quiet) and a cutout for when you want it loud. I bet that X pipe setup sounds awesome.

JRENIGAR

iTrader: (37)

Hooker catback with lt's and oryp sounds great. I had a flowmaster muffler on my 1st ls1 car and it sounded good but I like the hooker better and it dosent hold back any hp.

wannafbody

iTrader: (2)

Gibson stainless-it has a deep burble but isn't obnoxious-it might be too tame for some

Bluestreak

Dynomax 17227. If you live in a place where you can delete your cats, do it. Good compromise... great flow, good sound cruising (but quiet), awesome WOT sound. And much cheaper than a whole catback.

ta420nk

I vote hooker.. Tame under "normal" driving, and loud when you want it to be.. And it flows well.. AND it's 300 -350 bucks

GtoSpd

iTrader: (2)

Here's mine. SLP LM2 cat-back with stock Y and cats... Not much drone at all. I love it, aggressive but not over the top.

http://www.youtube.com/watch?v=97lRUTW4Q7o

TheSilverOne

iTrader: (22)

gibson is definitely a sleeper catback

X-ray

iTrader: (6)

So according to LS1 sounds, Borlamouth is just an SLP loudmouth with a borla muffler swapped in? I guess I can just start off with an SLP loudmouth II and see if I like it. Loudmouth II is quieter than Loudmouth I, correct?

And I was listening to sound clips of Magnaflow on LS1 sounds, and to me it honestly sounded the same as the loudmouth II. Not sure what to do.

solidsnakecsm101

iTrader: (10)

My favorite combo thus far is long tubes with a magnaflow cat back. Its nice and quiet when cruising and sounds awesome at WOT.