View Poll Results: which exhaust will give me the best sound
Flowmaster 80 series
9
15.00%
Slp Loud Mouth
21
35.00%
Magnaflow
28
46.67%
Dynomax
3
5.00%
Multiple Choice Poll. Voters: 60. You may not vote on this poll
Flowmasters vs. SLP LM vs. Magnaflow -PLEASE HELP ME DECIDE
08-29-2009 | 12:48 AM
#21
if i was you id go either with SLP or Borla exhaust.. but id do some research n see which one sounds the best to you. i have Borla and get complements all the time. if you want loud then that exhaust will do it. i can barely hear people when im driving. people turn to look at my car when i drive by 
giving it full throttle you cant hear **** except for that LOVELY sound.
giving it full throttle you cant hear **** except for that LOVELY sound. 
08-29-2009 | 08:00 AM
#23
Hey you can go to www.ls1sounds.com An that can help you also figure out what you may or may not like. If you want just flat out loud then go with the loudmouth1 if you want to tone it down a bit go with a loudmouth2 But I've been listen to the systems for a while now and I have and I love my GMMG the sound and tone matched with a Catted Y and headers it turns heads even with my small cam.
08-29-2009 | 09:25 AM
#24
If you are leaving the stock manifolds and cats on, then go for the LM1. But you probably won't like it once you throw on some Longtubes and ditch the cats. I have magnaflow on mine and like it. Its very quiet in the car and sounds good at WOT. I've never been a Flowmaster fan on F-bodies though.
08-29-2009 | 11:54 AM
#25
Joined: Nov 2003
Posts: 6,170
Likes: 219
From: Wichita KS / Rancho San Diego
It all depends on how loud you like it. Magnaflow and Hooker are QUIET on stock manifolds. My brother has and a good friend had the FM 80. It sounds awesome with manifolds - plenty loud and deep. I had a GMMG at the time which sounded very good, but a lot of people preferred the FM when they were running side by side.
I have no experience with the LM but the way people describe it on here I would never consider it.
I have no experience with the LM but the way people describe it on here I would never consider it.
08-29-2009 | 02:54 PM
#26
"Justified"? That is your opinion. That does not make it fact. Again exhaust is a matter of taste. I know the O.P. is looking for input to help him make his decision, and you gave yours. Thats great. You even have experience with LM, unlike most of the nay-sayers who chastise it. Like I said in my post, alot of people can't handle the sound/volume of Loudmouth. But some can. Maybe the O.P. is one of those. Maybe not. I'm not trying to argue. I just want people to be honest and present both the good and the bad. Loudmouth is not just bad, as many make it out to be. It can sound good, if it is matched to the right setup. Any negative points of the exhaust are valid. But to say the exhaust sucks is not justified.
08-29-2009 | 03:00 PM
#27
Thats exactly what I'm talking about. He has formed his opinion based on the what the rest of the heard has told him. To each their own, I guess. Again, good luck with your decision. LOL.
08-29-2009 | 03:05 PM
#28
Exhaust A LM sounds good on stock cubes, but like previous posts becomes raspy with LT's n no cats.
A LM was on my 01 WS6 when I got it. I dropped out the stock 5.7 (noisy rod) n popped in my ol 402. Wow, it was really raspy. I stuck my open chamber Flowmaster back on it. It's ok long as I don't WOT. Then a lil noisy.
My 454, I have a 4" Mufflex with a Magnaflow n sounds Great !
A LM was on my 01 WS6 when I got it. I dropped out the stock 5.7 (noisy rod) n popped in my ol 402. Wow, it was really raspy. I stuck my open chamber Flowmaster back on it. It's ok long as I don't WOT. Then a lil noisy.
My 454, I have a 4" Mufflex with a Magnaflow n sounds Great !
08-29-2009 | 04:27 PM
#29
Joined: Nov 2003
Posts: 6,170
Likes: 219
From: Wichita KS / Rancho San Diego
Right. It's called a LOUDmouth for a reason. Everyone agrees that's one of the loudest systems available. That's all I need to know I wouldn't want it.
08-29-2009 | 07:03 PM
#30
"Justified"? That is your opinion. That does not make it fact. Again exhaust is a matter of taste. I know the O.P. is looking for input to help him make his decision, and you gave yours. Thats great. You even have experience with LM, unlike most of the nay-sayers who chastise it. Like I said in my post, alot of people can't handle the sound/volume of Loudmouth. But some can. Maybe the O.P. is one of those. Maybe not. I'm not trying to argue. I just want people to be honest and present both the good and the bad. Loudmouth is not just bad, as many make it out to be. It can sound good, if it is matched to the right setup. Any negative points of the exhaust are valid. But to say the exhaust sucks is not justified.
08-31-2009 | 06:21 AM
#33
Thread Starter
TECH Veteran
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Joined: Aug 2009
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From: The Bay Area, CA
thanks again to everyone who's given their recommendations for a good exhaust system. i think im pretty close to making my decision. i'll let everyone know what i chose and post some before/after videos once its all done
08-31-2009 | 07:48 AM
#34
TECH Fanatic
Joined: Sep 2005
Posts: 1,293
Likes: 1
From: Fredericksburg Va
SLP's Loudmouth is great with factory manifolds or longtube headers. It is stainless steel just like the Maganflow and both are in the same price range as well. Should you decide to go with the LM and eventually do want LT's, your exhaust will definitely be louder. But if you go with a catted Y-pipe instead of the very popular ORY matched to your headers it results in a very aggressive sounding exhaust that may be too loud for some, but to me sounds awesome. Loudmouth gets alot of negative comments on here. Don't let that affect your decision. No matter what exhaust you choose, as long as you like it and you can stand to drive your car with it sounding the way it does, that is all that matters. And for that reason, I chose not to vote. The decision is yours, man. Not mine. Good luck. Let us know what you decide.
08-31-2009 | 11:07 AM
#35
LM1 is definitely a bad *** sounding catback. it lives up to its name. it does get pretty loud and obnoxious once you had some longtube headers and an ory and it will be very raspy. the magnaflow is very quiet. its a good system, but its not loud enough. it has a smooth crisp sound.
09-01-2009 | 01:31 AM
#36
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From: The Bay Area, CA
why are there 20 votes for magnaflow but when i read through all the comments practically no one has really talked too much about that option. if you vote for a particular exhaust system, i'd really appreciate it if you left me some reasons. thanks again
09-01-2009 | 02:20 AM
#37
i think Loudmouth opinions are formed based on setup and personal opinion. some people cant handle the volume. its perfect for me, and until i get **** for it from the pd im not going to change it. and depending on what bolt ons/internal work you have will affect the sound. my advise to you would be get the loudmouth, and if you dont like it, put a new muffler in the place of it. its modular so its very easy
09-01-2009 | 09:46 AM
#38
well everyone has a different OP but i like my slp LM2. with my stall its very nice and quiet cruising around and when i get on it its loud as hell and thats how i like it. its just witch sound you think you may like better.good luck man
09-01-2009 | 10:07 AM
#40
i have the loudmouth one and i had it on all last year when i had my stock cats and manifolds and i love the sound it was loud and everybody looked when i did WOT pull. then over winter i put hooker super comps LT's on the car with the ORY pipe and when i started it the car sounded amazing and i love it. everybody looks when i am just driving around because u can hear my car coming. at the same time though a few of my friends hate the sound of my car so its up to you that simple but if i had a choice i would go with the loudmouth