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383 stroker exhaust questions

This is a discussion on 383 stroker exhaust questions within the Performance forums, part of the General Discussion category; ive got a 383 stroker thats mildy built, i was looking into what kind of mufflers i should run. im ...

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    383 stroker exhaust questions


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    ive got a 383 stroker thats mildy built, i was looking into what kind of mufflers i should run. im not sure what are on there now but they sound good just looking to go to a bigger pipe sizes maybe a 2.25 or 2.5. i was looking at the flowmaster 40s and borla xr-1s but i haven seen anyone running them with a 383. I'm looking to get a deep tone but still be loud and also wanna be able to hear the cam good at idle too.
    Thanks in advance guys
    74k20
    mild 383 stroker
    8inches on 37in grapplers

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    Did someone say ponies? The Fiddle's Avatar
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    Re: 383 stroker exhaust questions

    I'd go at least 2.5" if going with duals. Other wise I'd go with a 3.5" single.


    Between those two mufflers, Borla hands down.
    2005 Pontiac GTO LS2/A4. FPFQ'ing the GTO community.
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    Re: 383 stroker exhaust questions

    yea ive got longtubes right now running trueduals but trying to decide on pipe size and muffler. i was thinking anything over 2.5 with duals might be too big
    74k20
    mild 383 stroker
    8inches on 37in grapplers

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    5TOCK silverado_lover's Avatar
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    Re: 383 stroker exhaust questions

    Just because no one is running one doesn't mean you should not get it

    To me the Borla sounds deeper and I think that would hide the cam some, I'd look into Spintech. My truck sounds like it has a lil cam with the Spintech even though it doesn't...I've had a few people who have asked me if it was cammed.

    The Spintech is throatier IMO
    Last edited by silverado_lover; 01-26-2011 at 06:39 PM.
    '95 C1500, LT's, 3200 stall, and some PCM tweaking


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    Supporting Gold Member GreaseDog's Avatar
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    Re: 383 stroker exhaust questions

    i'd go with a 3" single too. only slightly less nsurface area in a single 3" pipeover the 2 1/2" duals , and better exhaust scavenging... plus its easier to route a single pipe, and cheaper to buy 1 muffler rather than 2.
    Last edited by GreaseDog; 01-26-2011 at 09:32 PM.
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    Did someone say ponies? The Fiddle's Avatar
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    Re: 383 stroker exhaust questions

    Quote Originally Posted by silverado_lover View Post
    Just because no one is running one doesn't mean you should not get it

    To me the Borla sounds deeper and I think that would hide the cam some, I'd look into Spintech. My truck sounds like it has a lil cam with the Spintech even though it doesn't...I've had a few people who have asked me if it was cammed.

    The Spintech is throatier IMO



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    Re: 383 stroker exhaust questions

    its already set up for true duals so i wanted to try and keep it that way and have them dumped over my rear axle
    74k20
    mild 383 stroker
    8inches on 37in grapplers

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    Did someone say ponies? The Fiddle's Avatar
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    Re: 383 stroker exhaust questions

    Quote Originally Posted by elsurfo10 View Post
    its already set up for true duals so i wanted to try and keep it that way and have them dumped over my rear axle
    The Dynomax Bullets are also something you might want to look at.
    2005 Pontiac GTO LS2/A4. FPFQ'ing the GTO community.
    1999 OBS K1500 Black Bear tuned 383 Z71. 2" rear blocks, Hankook MT's. Still around.

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    5TOCK silverado_lover's Avatar
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    Re: 383 stroker exhaust questions



    here's a part of a pm i just wrote

    I'm trying to open peoples eyes to exhaust orgasms which I have daily(due to my Spintech). I compare glasspacks to having E.D. and flowmasters is like that chick you get all worked up over but she turns out to be either a complete bish or she doesn't make a sammich when you ask her to.

    My Flow 40 never made me a grilled cheese sandwich when I wanted one most. You know the kind with lotz of butta on the bread, and cooked to where it's slightly brown on the edges and crunchy buttery goodness in the middle. Oh and not a single slice of cheese but two slices...




    BRB I gotta go make a grilled cheese
    '95 C1500, LT's, 3200 stall, and some PCM tweaking


    Quote Originally Posted by Chevy4life11 View Post
    ive got 8 inches and i still wish i had 6 more

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    Re: 383 stroker exhaust questions

    Quote Originally Posted by elsurfo10 View Post
    i was looking at the flowmaster 40s and borla xr-1s but i haven seen anyone running them with a 383.
    Thousands of people do. Engine size has nothing to do with muffler choice though so its a mute point. To really throw you off I run flowmaster 40's with a 388 :)


    Quote Originally Posted by silverado_lover
    I'm trying to open peoples eyes to exhaust orgasms which I have daily(due to my Spintech). I compare glasspacks to having E.D. and flowmasters is like that chick you get all worked up over but she turns out to be either a complete bish or she doesn't make a sammich when you ask her to.

    My Flow 40 never made me a grilled cheese sandwich when I wanted one most. You know the kind with lotz of butta on the bread, and cooked to where it's slightly brown on the edges and crunchy buttery goodness in the middle. Oh and not a single slice of cheese but two slices...
    Not sure what that has to do with a mufflers sound and performance but jesus christ do I want a grilled chesse now!!!!
    I've seen many differenet mufflers over the years, I still only use flowmaster.
    Last edited by bored&stroked; 01-27-2011 at 10:22 AM.
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    5TOCK silverado_lover's Avatar
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    Re: 383 stroker exhaust questions

    Why still use flowmaster?
    '95 C1500, LT's, 3200 stall, and some PCM tweaking


    Quote Originally Posted by Chevy4life11 View Post
    ive got 8 inches and i still wish i had 6 more

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    Re: 383 stroker exhaust questions

    Quote Originally Posted by The Fiddle View Post
    The Dynomax Bullets are also something you might want to look at.
    Bullets do sound good and WAY better than other glasspacks. They're not as raspy and sound pretty good.
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    Re: 383 stroker exhaust questions

    Spintech, Pypes Violater, or Thrush Welded.

    Those are my favorite mufflers hands down
    1997 Silverado 1500 4x4 RCLB
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    Registered User mjealey's Avatar
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    Re: 383 stroker exhaust questions

    It is all a matter of opinion. I do not know a single person around here that has a Spintech. I here on here they are good mufflers and they do sound pretty good. I am old school though, and Flowmaster still is the best sounding in my opinion. I love the sound of a Super 40 or the original 40. There are some that flow better, but I have tried them and feel no difference so I go with Flowmaster. If it was me, I would go a true dual 2.5" exhaust and dump it at the axle. That would sound good and perform well too.

    When I bought the truck in the signature, it had a 2" full dual exhaust with glasspacks reduced down from 3" full length headers. I put on 3" dual exhaust with 2 Flowmaster Super 40's that are turned down before the axle. I didn't feel like reducing the exhaust, plus it has a 383 going in soon that is a pretty hot little motor. The 3" Flowmasters made a significant difference in the seat of the pants feel.
    1987 Chevy 4x4, 6" Skyjacker (all spring), 35" Super Swampers, Dana 60 (front) GM 14-Rear 4.56 gears, TH400, Built 355.

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    Re: 383 stroker exhaust questions

    so you have true dual 3inch? yea i was leaning towards the flowmasters but not positive yet, i mean they are good mufflers and sound good and are way cheaper than the xr-1s
    74k20
    mild 383 stroker
    8inches on 37in grapplers

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    Cars & Guitars 04SilveradoMykk's Avatar
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    Re: 383 stroker exhaust questions

    flowmaster Super 40's or 44's, personal preference

    A few sound clips of cars that have come into my old shop:

    Mine: flowmaster super 40's

    http://www.youtube.com/watch?v=nEXweSgJObc

    Ford 289, Mutha thump cam. dual 3" with Spintechs

    http://www.youtube.com/watch?v=U8Zh5uIInrI

    built LT1 with spintechs, I think

    http://www.youtube.com/watch?v=0Lsf-icCSPQ

    blown SBC with flowmasters, not sure te series. 50's I think

    http://www.youtube.com/watch?v=ZwyQmWfnngQ

    big block ford with aero chambers

    http://www.youtube.com/watch?v=nKteFJQt_Qc
    Last edited by 04SilveradoMykk; 01-28-2011 at 09:46 AM.

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    Born and Raised Chevrolet YenkoST's Avatar
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    Re: 383 stroker exhaust questions

    In a mild built 383, dual 2.5" is all you need. As far as muffler choice, get on youtube and type in 383 and you can listen for hours.

    Personally, in my 383, I run Hooker Aerochambers but I have heard Spintechs as well and they do sound good. Just get the Sportsman Series if you do. Flowmaster also sound good in an old school way but I've never ran them.

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