Wut mufflers??

Discussion in 'Classic Mustang Specific Tech' started by 99MystiCobra, Mar 17, 2009.


  1. 99MystiCobra

    99MystiCobra New Member

    Joined:
    Mar 17, 2009
    Messages:
    5
    Likes Received:
    0
    Trophy Points:
    0
    I have a 65 mustang with a 351W. I have LTH and h-pipe an the set of mufflers i have dont do the job. I have a Cam, ported heads and prm gap intake. I want alil more out of my mufflers. Wut can some one reccomend.
    #1
  2. BlownFiveLiter

    BlownFiveLiter have car, will race....wait, it doesn't run

    Joined:
    Nov 30, 1999
    Messages:
    5,504
    Likes Received:
    25
    Trophy Points:
    88
    :welcome: to :SNSign:

    What (it's spelled with an H in it, by the way :) ) mufflers are you running now? Are you looking to be loud, or more on the quiet side? I don't understand the statement that they're not getting it done for you.
    #2
  3. 99MystiCobra

    99MystiCobra New Member

    Joined:
    Mar 17, 2009
    Messages:
    5
    Likes Received:
    0
    Trophy Points:
    0
    I want it loud. Its quite. Its an old pair or flowmaster not to sure of what series. they are kind of big. Thanks for the help.
    #3
  4. silverbluebp

    silverbluebp Member

    Joined:
    Aug 13, 2003
    Messages:
    119
    Likes Received:
    0
    Trophy Points:
    16
    I have Dynomax race bullets on my 289 and they are pretty dang loud. Just the way I like them!

    I have a link to a sound bite on my CarDomain site below, bottom of 1st page.
    #4
  5. SadbutTrue

    SadbutTrue Founding Member

    Joined:
    May 1, 2002
    Messages:
    2,351
    Likes Received:
    1
    Trophy Points:
    49
    Really have to know what you have now to even get started. If you're one of the guys who thinks Flow 40s are quiet... well, then all we can tell you is to run open pipes/glasspacks and hope you're in a county that isn't too strict about it. If you have 50 series flowmaster, then yeah, I agree they're kinda lame and quiet.

    Also, kinda need to know whether you want the 'angry roar' sound (Flow, Spintech), the 'raspy/menacing sound' (Dynomax, Magnaflow kinda), the high tech/exotic sound (Borla, Magnaflow sorta), etc. And whether you desire the utmost in performance from your muffler or whether your primary objective is sound (some people will trade optimal sound for 5 hp)
    #5
  6. 99MystiCobra

    99MystiCobra New Member

    Joined:
    Mar 17, 2009
    Messages:
    5
    Likes Received:
    0
    Trophy Points:
    0
    Im not really looking for performance out of this car. I have a 99 cobra that im working on. I guess what i want is something a little more of a roar. Right now it sounds good but only right next to the car once your like 10 feet its quite. Cant hear much.
    #6
  7. rhyno9

    rhyno9 Founding Member

    Joined:
    Oct 30, 2002
    Messages:
    209
    Likes Received:
    0
    Trophy Points:
    0
    Your cam will play a big role in this.

    I have a 351w with a 5.0 roller cam in it. No lope and very docile at idle. Long tubes going into cherry bomb glasspacks and exiting in front of the rear wheel.

    At idle it is very quiet. When the loud pedal is down the whole world can hear ya coming.

    My previous 289 had a comp magnum cam and that thing was downright mean sounding with the same mufflers and tailpipes. It would shake the house at idle while in the garage. It was so loud that my neighbor called the cops on me the first time I fired it up.

    With the 351 now I can start the car up in the garage and not wake up my 7 yr old. Her room is above the garage.

    The cam plays a much bigger role than most think.
    #7
  8. SadbutTrue

    SadbutTrue Founding Member

    Joined:
    May 1, 2002
    Messages:
    2,351
    Likes Received:
    1
    Trophy Points:
    49
    Eh, cam does play a role to be sure but you can certainly make major changes in exhaust note without tearing the engine down. It'll just sound better when you cam it later :) Other things definitely have an impact too... heads and carb can both make a car's exhaust sound different.

    If you want a roar, go long tube headers + flow 40s (not sure if those are the mufflers you already have).

    Long tubes tend to deepen the sound and make it louder. And Flow 40s are pretty loud and still the best sounding mufflers I've heard on classics, IMO. Might also look at Spintechs, a few guys on here say they're even louder than the Flows. Plus, they're pretty rare compared to Flowmasters, so you'd have a bit more uniqueness to your car.

    Check this link out, I had it bookmarked. Might help you... has quite a few muffler combos on SBFs.

    http://forums.stangnet.com/763871-listen-over-200-exhaust-sound-clips-before-you-buy-your-next-exhaust.html#post7686710
    #8
  9. iapexl8r

    iapexl8r Member

    Joined:
    Apr 1, 2005
    Messages:
    255
    Likes Received:
    0
    Trophy Points:
    17
    #9
  10. jspagna1

    jspagna1 New Member

    Joined:
    Jan 23, 2007
    Messages:
    79
    Likes Received:
    0
    Trophy Points:
    0
    #10
  11. blown65

    blown65 Founding Member

    Joined:
    Jul 7, 1999
    Messages:
    1,977
    Likes Received:
    1
    Trophy Points:
    39
    #11

Share This Page