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Thread: FS : Flowmaster 40 Series Delta Flow Dual Side Exi

  1. #1
    Join Date
    Apr 2003
    Location
    Cali
    Posts
    142
    This catback is from my GMC Sierra.
    The muffler is a Flowmaster 40 series delta flow with 3" inlet and dual 2.5" outlets. It also has dual chrome tips welded on.
    The tips have some wear on them on the bottom side, its not that bad but new tips would make this system look new. It has the factory hook on it.




    The really liked this muffler. It is loud, but dosent have much drone, and the exits out the side make the engine scream. The only reason I changed it was because I got hooked up with a MagnaFlow cat back from Oxidizr (thanx agian ).

    75 shipped

    Camaroz@excite.com or PM me

  2. #2
    Join Date
    May 2003
    Posts
    127
    damn sweet deal!
    2005 RCSB 4.8L TVS1900 9 psi
    2005 ECSB 4.8L TVS1900 5 psi

    That makes 9.6L @ 14psi

  3. #3
    Join Date
    Apr 2003
    Location
    Cali
    Posts
    142

  4. #4
    Join Date
    Apr 2003
    Posts
    175
    I know it's sold, but do you have pics of it hooked up?
    Andrew
    2001 Silverado 6.0 RCLB - Home Page - 4.8 to 6.0 Swap
    Nelson Tune, Comp Cam XR265HR, Pacesetters, Hotchkis Sways, 3.42, Eaton Posi, Transgo, LS1 Fans, Magnaflow, Eagle 219's 18x9.5, Fold-a-cover

  5. #5
    Join Date
    Apr 2003
    Location
    Cali
    Posts
    142
    Yea but it was before I cleaned the system up...

    Before:




    After:



  6. #6
    Join Date
    Jun 2004
    Location
    pasadena, tx.
    Posts
    155
    Hey Mac, i just bought a 4.8 and was thinking of getting the same muffler, but iI dint know how good it would sound. Did uyou like it? Sound pretty mean?
    04 4.8 FIPK, Pacesetter long tubes, dual exhaust with x-pipe and Dynomax race bullits, gutted cats, 160 therm, hypercrap programmer

    Future mods-p/p thottle body, 02 z06 cam, within the mth. 4:11 g80 soon after......just tryin to blow my tranny

  7. #7
    Join Date
    Apr 2003
    Location
    Cali
    Posts
    142
    Sounds really mean. It definitly has that classic flowmaster sound.

    But...

    I would highly recomend magnaflow, which is what I have now. They sound really mean also plus you wont loose any HP which I think I was with the flowmaster. They are also stainless steel which is really nice. They magnaflow tone is something I would describe as more refined but definitly got balls.

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