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Kind of strange but..

This is a discussion on Kind of strange but.. within the Firebird / WS6 forums, part of the Vehicle Specific category; My buddy has a 2000 trans am with magnaflow, high flow cats, pacesetter headers, and lid. I have a 98 ...

  1. #1

    Kind of strange but..

    My buddy has a 2000 trans am with magnaflow, high flow cats, pacesetter headers, and lid. I have a 98 ws6 with magnaflow, highflow cats, and lid. Our cars sound exactly the same. Im kind of dissapointed that the lts dont make it sound meaner. If I listen very carefully I can hear alittle more of a growl but none of our friends can even notice it. Is this usually the case with these cars since the stock headers are not "that" bad??

  2. #2
    Moderator Cutlass's Avatar
    Join Date
    Apr 2008
    Madison, WI

    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    I think it has more to do with the cats and the Magnaflow. Both are very well known to change/dampen/muffle the exhaust tones VERY well. With an ORY or a different catback, you probably notice more of difference between headers and manifolds.

  3. #3
    Senior Member tatertot91's Avatar
    Join Date
    Oct 2008
    Coral Springs, Fl

    Sunset Orange Metalic
    2001 Camaro SS

    I guess you guys have emissions checks which is why you have cats but like Cutlass above me said, the cats have a lot to do with it.

  4. #4
    Bullet Boy Same ol Situation's Avatar
    Join Date
    Dec 2008
    Cincinnati, Ohio
    2002 CETA m6

    cars from the factory come with exhaust manifolds not headers, and compared to long tube headers they restrict the exhaust flow quite a bit

  5. #5
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Mansfield, PA

    Black & Blue
    '02 WS.6 / '07 Suburban

    As far as exhaust goes... to each his/her own. Personally, I really like the mellowness of the Magnaflow system at idle and cruise and how it opens up under acceleration. I have yet to run it on the road since the LT and catted Y install, but in the garage it certainly has a bit more bark than just the catback had.

  6. #6
    Smiles for 9.5 Years cammed goat's Avatar
    Join Date
    Jan 2009
    Paterson/Ridgewood, NJ

    Phantom Black Metallic
    2004 GTO M6

    I have been told that cats act as resonators.

  7. #7
    Senior Member justinmc978's Avatar
    Join Date
    May 2009
    college station, tx

    sold: 1999 firebird
    1998 Trans Am

    its because of the cats, headers have nothing to do with it,

  8. #8
    I mean I like how it sounds but I just thought it would be alot louder with long tubes. Either way it sounds ten times better than our other buddys that has slp. Oh man I hate that sound haha

  9. #9
    Auto Painter RyanJM's Avatar
    Join Date
    Dec 2007
    Houston, TX

    1998 Trans Am

    it's the cats. My car sounded good with just the flowmaster I wlded into the factory location back when the car was stock. Soon as I got the lt's and ory it got loud and raspy. I hardly drove it anywhere till I got my new catback. I got the SLP PowerFlo since it had the sound I wanted. Magnaflow has a good kit but there were to many people I knew with them and I got the SLP Kit when it 1st came out. It sounds closer to a magnaflow it's deep and not too loud at idle and cruising and loud at WOT but not really raspy thanks to the 3 muffler setup.
    1998 Trans Am 85k miles.
    Bolt ons, MS3 113LSA cam, Circle D Stall, Tune, Modified WS6 style hood, Full Suspension, 6000k HID's, Clear Side Markers w/ Leds, Led 3rd Brake Light and 18" AR Staggered Killer Wheels w/ BFG KDW NT's.- Weekend Toy/DD
    02 Trailblazer -Sold
    09 Ram 1500 CC - Sold
    09 Cobalt SS/TC - Sold
    13 ram 1500 LoneStar CC 4x4 - Magnaflow, K&N,and more to come-DD/Toy

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