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How do I choose a muffler?

This is a discussion on How do I choose a muffler? within the External Engine forums, part of the LSx Technical Help Section category; My 1999 trans am is completely stock. I want it to sound deeper and louder. I do no want to ...

  1. #1
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    White
    1999 Trans Am

    How do I choose a muffler?

    My 1999 trans am is completely stock.
    I want it to sound deeper and louder.
    I do no want to change anything about the engine.
    I thought that putting a new muffler on would be the best way.
    How do I choose which muffler to get?
    I have read already that flowmaster sounds like crap.
    I have looked at brands like magnaflow/dynomax.
    I know that borla is too expensive for me.
    I'm not looking to spend over $100 on the muffler.
    Does anyone have any information that can help me??


    Also I'm looking to also get new tips.
    I really want dual, stainless steal, angle cut tips.
    And also ones that are not longer than 10 inches.
    The outlet size doesn't really matter anywhere from 2.5 to 3 would work.
    I don't want the ones with resonators because they decrease the sound.
    The only ones that I can find like that on summit racing are magnaflow ones for 50 dollars each.
    I was hoping to spend about 50 on two.
    Does anyone know any other good brands for tips??


    Any and all links and in-put apprieciated.
    Thank you!

  2. #2
    Detailing + Design third_shift|studios's Avatar
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    go, have fun =)

  3. #3
    1 BAD ASS BOWTIE StangKiller615's Avatar
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    Black on Black
    2001 Camaro SS

    Instead of just getting a muffler, why not get a cat-back exhaust system? Corsa, GMMG, and Borla are some of the nicest cat-backs for F-bodys although very expensive. If you want lots of sound you may wanna consider a SLP Loud Mouth. FlowMaster is the the worst flowing for LS1 cars. I went on and got the Corsa, and love every bit of it. Corsa has the nicest tips as well. The SLP uses a resonator rather than a muffler, but the resonator can be replaced with a muffler. This system will work for you if you plan on leaveing the engine stock, but tends to get obnoxious with lots of drone with boltons.

  4. #4
    MY SON'S A RICER! TMF's Avatar
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    Arctic White
    2000 TransAm

    SLP Loudmouth is the way to go, if it's a 6 spd. I love it and so does everybody within 100 yards
    2000TA, ARCTIC WHITE, 6 SPD
    ALL THE USUAL STUFF
    A MILE HIGH & A SECOND SLOWER

  5. #5
    Member smilin assassin's Avatar
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    Corsa...

  6. #6
    Visualize°Design°Create SSwt00SS's Avatar
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    '12 Silver SS 1SS
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    Quote Originally Posted by TMF View Post
    SLP Loudmouth is the way to go, if it's a 6 spd. I love it and so does everybody within 100 yards
    car alarms love the Loud Mouth system too! esp, when the car is cammed...lol
    2000 SS - The Wicked Witch: °°Cammed 'n Slammed°° 458rwhp/410rwtq
    Quote Originally Posted by Bowtie_girl30
    I was hoping to just hump her up the exhaust cause she is so damn sexy....
    "Never argue with an idiot. They drag you down to their level, then beat you with experience."

  7. #7
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    black
    1968 Rally Sport

    If you aren't doing any other mods, go with SLP loudmouth.

  8. #8
    Member blk_jaws's Avatar
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    Black on Black
    2000 Trans Am M6

    Flowmaster has a awesome sound. If you aint going to do anything to the motor, and aint worried about power gains get a flowmaster 80 series muffler you'll love it.

  9. #9
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    White
    1999 Trans Am

    i looked at the inside of some flowmasters today.
    i don't like the way they are so restrictive.
    i think i will look into getting something from SLP or magnaflow.
    borla is way too expensive for my budget.

  10. #10
    Super Senior Member derrinx's Avatar
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    wow that site is really helpful

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    The Immortal Wulfe13's Avatar
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    Cayenne Red Metallic
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    SLP LoudMouth sounds GREAT... NOT the SLP LoudMouth II...

  12. #12
    meanZ97
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    screw the muffler. just have it dumped. thats what i have on my car and it sounds alot meaner than it really is.

  13. #13
    Senior Member illcul8troffcr's Avatar
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    Sebring Silver
    2002 Camaro SS

    Quote Originally Posted by StangKiller615 View Post
    Instead of just getting a muffler, why not get a cat-back exhaust system? Corsa, GMMG, and Borla are some of the nicest cat-backs for F-bodys although very expensive. If you want lots of sound you may wanna consider a SLP Loud Mouth. FlowMaster is the the worst flowing for LS1 cars. I went on and got the Corsa, and love every bit of it. Corsa has the nicest tips as well. The SLP uses a resonator rather than a muffler, but the resonator can be replaced with a muffler. This system will work for you if you plan on leaveing the engine stock, but tends to get obnoxious with lots of drone with boltons.
    She said she was only trying to spend $100


    Ive had a flowmaster... Ive had the slp muffler .. And Im partial to my magnaflow now.. I bought the entire catback though
    http://i55.photobucket.com/albums/g154/illcul8troffcr/My%20SS/signaturew.jpg
    2002 Camaro SS #1539
    MTI Clear AirLid /Magnaflow catback/Polished Hotchkis Strut Tower Brace/K&N Filter/Bilstein Suspension/
    http://www.cardomain.com/ride/553601
    http://www.fquick.com/illcul8troffcr

  14. #14
    Senior Member SeVeReDiStOrTiOn's Avatar
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    05 Wrangler
    00 Z28 sold :-(

    Quote Originally Posted by MichelLeS1 View Post
    My 1999 trans am is completely stock.
    I want it to sound deeper and louder.
    I do no want to change anything about the engine.
    I thought that putting a new muffler on would be the best way.
    How do I choose which muffler to get?
    I have read already that flowmaster sounds like crap.
    I have looked at brands like magnaflow/dynomax.
    I know that borla is too expensive for me.
    I'm not looking to spend over $100 on the muffler.
    Does anyone have any information that can help me??


    Also I'm looking to also get new tips.
    I really want dual, stainless steal, angle cut tips.
    And also ones that are not longer than 10 inches.
    The outlet size doesn't really matter anywhere from 2.5 to 3 would work.
    I don't want the ones with resonators because they decrease the sound.
    The only ones that I can find like that on summit racing are magnaflow ones for 50 dollars each.
    I was hoping to spend about 50 on two.
    Does anyone know any other good brands for tips??


    Any and all links and in-put apprieciated.
    Thank you!
    Go with the magnaflow....it's cheap(just get the muffler if that's all you can afford) and sounds good but is kinda quiet at lower rpm's until you break it in. If you want loud then go with slp...it'll get annoying after awhile if the car is your DD.

    For tips...most muffler shops will throw in free ones...if you're doing the install yourself then a muffler shop might just sell you some cheap tips

    BTW you're f'in HOT

  15. #15
    Lead Foot! WhiteLs1's Avatar
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    99 Z28

    I had a flowmaster on my 2000 formula WS6 it was very loud and I could easily intimidate people. On my current 99 Z28 I chose a Magnaflow because it flow better than the flowmaster. It is fairly quiet but it does have a nice muscle car rumble, my .02

  16. #16
    Senior Member illcul8troffcr's Avatar
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    Sebring Silver
    2002 Camaro SS

    Quote Originally Posted by WhiteLs1 View Post
    I had a flowmaster on my 2000 formula WS6 it was very loud and I could easily intimidate people. On my current 99 Z28 I chose a Magnaflow because it flow better than the flowmaster. It is fairly quiet but it does have a nice muscle car rumble, my .02

    My first car was an 89 IROC-Z back in 95.. flowmaster.. loved the sound..

    had an immaculate 91 GTA.. changed over to same thing with the three inch chrome barrels out the back sounded badass.

    then moved over to a 95 Z28 modified engine and something was definitely done with the exhaust.. but had original tips .. but that bastard was mean sounding ..

    last but definitely not least... Ordered my 2002 SS with the regular Slp exhaust .. Added the magnaflow cat back.. absolutely hated how low and how clusterfuck the tips looked hanging out of the back of the car .. definitely does not go along with the body lines of a camaro .. so I left the magnaflow on and ordered the SLP centermount valance and tips and fabricated it to the magnaflow .. Im very pleased with the looks and like the other guy said its quiet at first but after you break the magnaflow in it sounds extremely good .. and has the best flow.. and hp bump by statistics on the site.. and on higher rpms definitely an attention getter ..

    my friends have a tendency of getting in and reving it up to set off car alarms itll definitely turn some heads ..



    and key point .. you have the firebird .. it has a big cut out in the back for barrels of an exhaust so if you did get spring the $300 or so to get the magnaflow catback setup which is all bolt on .. the polished stainless steel tips it comes with would probably look perfect


    this is the reported hp bump by getting a magnaflow from their site

    heres the magnaflow after installed

    this is a side shot you can see how low and how far they stick out

    this is after I switched it of course

  17. #17
    Window Licker Sassy Cassie's Avatar
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    Quote Originally Posted by smilin assassin View Post
    Corsa...
    Save up your money and do it right the first time. Get the Corsa and please for the love of all things wholly just say to Flowmaster.

  18. #18
    Window Licker Sassy Cassie's Avatar
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    BTW- If you don't have a lot of money to spend, consider browsing the for sale section of this site, and e-bay.

  19. #19
    Member smilin assassin's Avatar
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    Quote Originally Posted by Sassy Cassie View Post
    BTW- If you don't have a lot of money to spend, consider browsing the for sale section of this site, LS1Tech, and e-bay.
    That is some good advice right there...

  20. #20
    I am Useless Ice Spiral's Avatar
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    If you have a V8.... it should be "What muffler?!?!"

    Straight pipes. Know 'em, love 'em.

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