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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
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    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
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    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
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    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
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    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
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    I have been told that cats act as resonators.

  7. #7
    Senior Member justinmc978's Avatar
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    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
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    White
    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
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    13 ram 1500 LoneStar CC 4x4 - Magnaflow, K&N,and more to come-DD/Toy

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