whats the loudest?

[whoisdabomb86]

i was thinking about getting either an SLP catback or a flowmaster american thunder cat back. which will give me more performance, and which will be louder. i got a 350 with hedman shorties. and my car is a 86

[Savage Messiah]

Straightpipe the cats and run glasspacks.

[LT1MAN]

flowmaster sounds the best hands down

[Savage Messiah]

Originally Posted by LT1MAN

flowmaster sounds the best hands down

If by "best" you meaa "plainest, most overrated, and the same tone as everyone else"

Between those two I would pick the loudmouth. Much better flow (straight thru) and tone, plus its LOUD.

[DVS LT1]

I get props all the time for my exhaust - people are always telling me how awesome it sounds and ask me what system it is... its a Flowmaster 80 series muffler, thats it. I've got crappy Edelbrock shorties and the rest is stock. The dual 2.5" outlet pipes actually constrict back down to 2.25" to accomodate the stock rectangular tips - looks completely stock, sounds like 500 hp.

I've heard the SLP loudmouth (on an LT1 its pretty cool but on the LS1 its shit); the MagnaFlow catback system sounds suprisingly good considering how cheap it is. I've come to the realisation that the Borla catback is one of the best performing systems on the market look at ALL the top F-Bodies featured in GM High Tech (street legal) anyways - they're ALL running Borla's. I know I'm due for a real 3" catback with long tubes and as tempted as I am to get a Borla I just can't stand how awfully raspy it sounds. I honestly think I'm going to spring for an American Thunder catback if I can get one with the 80 series muffler. Flowmaster sounds awesome.

[LT1MAN]

Originally Posted by DVS LT1

I get props all the time for my exhaust - people are always telling me how awesome it sounds and ask me what system it is... its a Flowmaster 80 series muffler, thats it. I've got crappy Edelbrock shorties and the rest is stock. The dual 2.5" outlet pipes actually constrict back down to 2.25" to accomodate the stock rectangular tips - looks completely stock, sounds like 500 hp.

I've heard the SLP loudmouth (on an LT1 its pretty cool but on the LS1 its shit); the MagnaFlow catback system sounds suprisingly good considering how cheap it is. I've come to the realisation that the Borla catback is one of the best performing systems on the market look at ALL the top F-Bodies featured in GM High Tech (street legal) anyways - they're ALL running Borla's. I know I'm due for a real 3" catback with long tubes and as tempted as I am to get a Borla I just can't stand how awfully raspy it sounds. I honestly think I'm going to spring for an American Thunder catback if I can get one with the 80 series muffler. Flowmaster sounds awesome.

see, this man knows what hes talking about. dont listen to the v6 owners when it comes to sound.

[Hypsi87]

I am a big fan of the loudmouth systems. I have put them on MANY LS1 cars and I think it is the best sounding system by far.

[Link85x]

What about GMMG?

[iroczman]

What one would give you more power and still sound good? I was wanting Flowmasters american thunder with edelbrock headers. would that be good on a 305 tpi?

[DVS LT1]

Hey Hypsi, are there Loudmouth's that don't come with a muffler (or do they all come with that little cherrybomb sytle one). This dude I met at a car meet was running a loudmouth with no muffler - said it came like that (it was a '00 Z28). Maybe he didn't notice the little muffler part, who knows... I agree that the Loudmouth gives off one of the better sounds on LS1 motors - especially at really high RPM's, but there's something about how those new engines sound, and idle... not as mean and muscular as the old school sound - to me anyways.

IrocZman, I don't know what style headers Edelbrock makes for your model but don't even consider the TES (Tubular Exhaust System) smog-legal shorties - they are garbage. Go with long tubes.

[Link85x]

GMMG exhuast, anyone? Btw, DVS LT1, i heard from a couple of guys here that for the 305, the edelbrock TES was the way to go.

[Savage Messiah]

Originally Posted by LT1MAN

see, this man knows what hes talking about. dont listen to the v6 owners when it comes to sound.

First off sound is personal preference unlike performance. And we both agreed on the Magnaflow...

But you see the thing is, this thread said NOTHING ABOUT TONE QUALITY until you came in all ignorant and said "flowmaster sounds the best hands down." THAT WAS NOT PART OF HIS QUESTION!!! And if for one second you think that flowmaster is louder than the SLP take you head out of your ass, q-tip the crap out of your ears and listen again you god damn momo... now shut up

[Mr. Luos]

Originally Posted by Link85x

What about GMMG?

Listen to this man!!!! He knows what he is talking about. GMMG is a SWEET sounding catback for the LS1 cars.

It is all in personal opinion. I liked my Loudmouth when my car most mostly stock. It didn't sound too bad with longtubes. Sounded like shit to me once I got the cam put in. So bad, that I took it off. Replacing it with Magnaflow. And here is why.
Personally, I would never put the DroneMasters on my cars. They don't seem to flow as well, and for some reason they drone really bad.

Go to www.ls1sounds.com to hear the popular systems. Keep in mind, everyone's cars tend to sound a little different.

[testtube]

Originally Posted by LT1MAN

see, this man knows what hes talking about. dont listen to the v6 owners when it comes to sound.

V6 guys probably know more then us about the sound of V8 exhaust, seeing as how they get to hear it from behind so much. lol J/K 97

[sbackof]

Dr. Gas BOOM TUBE is louder than a loudmouth, and you dont see to many on street cars