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FlowMaster Cat-Back Exhaust

This is a discussion on FlowMaster Cat-Back Exhaust within the External Engine forums, part of the LSx Technical Help Section category; Where do I get a new one for a 99Z28 /M6 Rx Bruce...

  1. #1
    Member StoreKeeper99Z28's Avatar
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    1999/ Z28

    Question FlowMaster Cat-Back Exhaust

    Where do I get a new one for a 99Z28 /M6

    Rx Bruce
    99Z28/M6/ 4:10s/Cam (233/233/578/578 113) lsa MMS Aggressor/ AFR (Mongoose) Heads /Pro5 with Lou's Short Stick/Ported LS6 Throttle body/MidLenth Headers /Custom 3" Y-Pipe and various other Mod's

    CMS E/Street Tune
    437 RWHP/ 398 Torque

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    Asshole bige97's Avatar
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    i saw one a sponsored site last night when i was looking at parts

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    Member Speed Psychosis's Avatar
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    http://www.lmperformance.com/2893/1.html

    imo there are better systems out there performance/sound wise around the price. check youtube and ls1sounds.com if you haven't. but do what you like sound wise.

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    Member Z28LS1's Avatar
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    I have a 99 z28 m6 and a flowmaster catback. Flowmaster is not a bad brand, but the system for our cars isn't very good. Not only did I hear of that through word of mouth, but a LS1 specialty shop. They also said there are better products out there around the price. I think magnaflow isnt bad and its near the flowmaster..

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    Member Z28LS1's Avatar
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    i just looked at your mods and now i feel like a novice trying to tell an expert what to do haha.. they have them on ebay.. a guys selling a used one right now dirt cheap actually

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    LTX N20LT4's Avatar
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    Quote Originally Posted by Speed Psychosis View Post
    http://www.lmperformance.com/2893/1.html

    imo there are better systems out there performance/sound wise around the price. check youtube and ls1sounds.com if you haven't. but do what you like sound wise.
    I don't know about sound wise. Performance is another story, but I can't think of one system around the same price that sounds better than a Flowmaster.

  7. #7
    Member Speed Psychosis's Avatar
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    ^ its all opinion. personally i think hooker and loudmouths 1 & 2 sound better.

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    LTX N20LT4's Avatar
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    Quote Originally Posted by Speed Psychosis View Post
    ^ its all opinion. personally i think hooker and loudmouths 1 & 2 sound better.
    I like Hooker...

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    Impounded
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    Quote Originally Posted by N20LT4 View Post
    I like Hooker...

    i like hookers also. i like to steal their money and then buy my wife nice things.

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    LTX N20LT4's Avatar
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    Quote Originally Posted by Boomer Sooner View Post
    i like hookers also. i like to steal their money and then buy my wife nice things.
    Halarious. I was just waiting for someone to say something.

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    Impounded
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    Quote Originally Posted by N20LT4 View Post
    Halarious. I was just waiting for someone to say something.
    thats what im here for.

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    Member Blue_98_ws6's Avatar
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    i love the sound of gmmg
    Built A4 with B&M Transpak shift kit, Hooker Lt's, 0RY, 4in cutout, Debaffled, K&N, SLP Lid, Bellows, p+p+descreened MAF,TB bypass, 180 degree Theromostat, AC removed, RP Trans fluid, oil, MSD 8.5 wires, Autolite Xtreme perf plugs, Nitto DR

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    Member StoreKeeper99Z28's Avatar
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    Question

    Where can I here a sound clip ?

    Rx Bruce

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    Senior Member INMY01TA's Avatar
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    I think the FLowmaster catback sounds weak on the LS1s. Nothing at all like my friends old LT1, or Stangs for that matter. Magniflow sounds better imo.

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    Member 98 Stang Killer's Avatar
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    Well you can go to lpperformance or summit

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    Senior Member Hurley711's Avatar
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    Quote Originally Posted by StoreKeeper View Post
    Where can I here a sound clip ?

    Rx Bruce
    ls1sounds.com

  17. #17
    JUISSED Midnight02's Avatar
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    Sound is all a matter of personal preference. On his heads and cam car, the Flowmaster catback will likely sound pretty good (in my opinion). I have a Flowmaster cat-back on my car and it doesn't sound bad at all.....on long trips I simply close the e-cutout and listen to the purr.

    There are a number of places to find the cat-back kit...There are several sponsors that carry it as well as Summit Racing.
    2002 Camaro SS M6, 2.5 PRC 5.3L heads, TFS 228/230 cam, FAST 92, bolt ons + a 10 lb bottle in the back.


    1989 Corvette L98, A4, Full bolt ons, etc.

  18. #18
    suckme sideways andrew69_04's Avatar
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    when i had my flowmaster catback, with lt's, cam, and ORY, it sounded like a vibrating tin can at certain RPM's under acceleration. Needless to say, it came off. The catback sounds pretty good on a manifolds car with cats.

    Also, the performance isnt really any worse than other catbacks.

  19. #19
    Member hoss 2000 z-28's Avatar
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    2000 Z28

    At worst you are probably around 3-4 hp less with Flowmaster (according to Y2KPewter in a similar thread) but if you like the look and sound and you aren't hardcore, trying to get every single hp to the ground, etc. then get the Flowmaster! Do what makes you happy. I would personally recommend the Magnaflow since it sounds great and better yet, it's stainless and won't fall apart in 5 years or so.

    LS1sounds.com is a great site to check out different exhaust and cam combinations. Good luck!

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    didn't you just switch from loudmouth to magnaflow bruce ? what happened didnt like the sound? My girlfriends got a 1 in 2 out flowmaster on her car right now... i wouldnt mind trading for your magnaflow

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