Thread: Dynomax Catback

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  1. #1 Dynomax Catback 
    BwolfGT
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    Default 08-24-2009
    Picking up a 3" dynomax catback for $75 tomorrow, any good?
    Anyone got a vid?
    1998 GP GT - Topswap - Ported M90 - N* - 4" FWI - Poly Mounts - 3" DP - 180 Tstat - Alt. Rewire - 3.29 gearing - Full Exhaust - Custom Tune
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  2. #2 Re: Dynomax Catback 
    GTPJOE90
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    Default 08-24-2009
    nice score
    hogan 3inch DP u bend delete ,180*tstat, autolite 104s, LED interior, 4" FWI, 2000watt system, bullitt rims, zzp pistons, pems, alt rewire, thrush muffs, 3.4 zzp mps, transgo shift kit, triple edge performance trans. autometer triple pod :SOON: urlosn HPT PCM tune, HEADERS, 1.9's
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  3. #3 Re: Dynomax Catback 
    QwikGT
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    Default 08-24-2009
    the dynomax catback for the wbody comes 2.25 inch....is this a custom piece? you have a GT 3inch is too big, you need backpressure or the car will be even slower
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  4. #4 Re: Dynomax Catback 
    Street Wolf
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    Default 08-24-2009
    Quote Originally Posted by QwikGT View Post
    the dynomax catback for the wbody comes 2.25 inch....is this a custom piece? you have a GT 3inch is too big, you need backpressure or the car will be even slower

    x 2
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  5. #5 Re: Dynomax Catback 
    Bio248
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    Default 08-24-2009
    3" is for people with turbos. thats it.
    '05 CTS-V - Badass baby hauler.
    2008 Kawasaki ZZR600 - The fastest thing I've owned so far.
    1979 Yamaha XS650 - Project death 'bob (2) - sold.
    2006 Subaru 2.5i - sold.
    1998 Grand Prix XGT - sold.
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  6. #6 Re: Dynomax Catback 
    BwolfGT
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    Default 08-24-2009
    Maybe I'm wrong on the size then, I'm topswapping in a couple weeks as well.
    1998 GP GT - Topswap - Ported M90 - N* - 4" FWI - Poly Mounts - 3" DP - 180 Tstat - Alt. Rewire - 3.29 gearing - Full Exhaust - Custom Tune
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  7. #7 Re: Dynomax Catback 
    UR LOSN
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    Default 08-24-2009
    they are decent! I have come to like Magnaflow better..but still it is a good exhaust.
    2001 GTP- PT76 turbo, Intense Drag cars old engine, Stage 4 Intense turbo cam,FMIC,150 wet,Double roller timing chain,Diamond forged coated pistons 8:0:1,Diamond piston rings,Cryoed L32 connecting rods,Cryoed crank,Clevite77 main bearings,Clevite77 cam bearings,Clevite77 L32 rod bearings,ARP Everything, Intense/meizere true billet Flexplate,Intense Wilson UIM/LIM,Intense oil pressure kit,Cometic,OE-R lifters,Cryoed L67 block,ATI turbo dampner,80# inject,Weldon 2035 fp,Aero Fuel Rails,AL cradle
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  8. #8 Re: Dynomax Catback 
    BwolfGT
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    Default 08-24-2009
    Thanks man, yeah its pretty decent especially for 75 bucks. Don't know how to install mayself though so I have to pay for that too :[
    1998 GP GT - Topswap - Ported M90 - N* - 4" FWI - Poly Mounts - 3" DP - 180 Tstat - Alt. Rewire - 3.29 gearing - Full Exhaust - Custom Tune
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  9. #9 Re: Dynomax Catback 
    Bio248
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    Default 08-24-2009
    a catback? you cant install a catback? how are you supposed to do a top swap?
    '05 CTS-V - Badass baby hauler.
    2008 Kawasaki ZZR600 - The fastest thing I've owned so far.
    1979 Yamaha XS650 - Project death 'bob (2) - sold.
    2006 Subaru 2.5i - sold.
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  10. #10 Re: Dynomax Catback 
    BwolfGT
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    Default 08-24-2009
    Quote Originally Posted by Bio248 View Post
    a catback? you cant install a catback? how are you supposed to do a top swap?
    Don't have a jack, I know HOW to do it...I just cant.
    1998 GP GT - Topswap - Ported M90 - N* - 4" FWI - Poly Mounts - 3" DP - 180 Tstat - Alt. Rewire - 3.29 gearing - Full Exhaust - Custom Tune
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  11. #11 Re: Dynomax Catback 
    Bio248
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    Default 08-24-2009
    jacks are like $35 for a decent one.
    '05 CTS-V - Badass baby hauler.
    2008 Kawasaki ZZR600 - The fastest thing I've owned so far.
    1979 Yamaha XS650 - Project death 'bob (2) - sold.
    2006 Subaru 2.5i - sold.
    1998 Grand Prix XGT - sold.
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  12. #12 Re: Dynomax Catback 
    BwolfGT
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    Default 08-24-2009
    Good point. Its just a few bolts right? I'm sure I can do it.
    1998 GP GT - Topswap - Ported M90 - N* - 4" FWI - Poly Mounts - 3" DP - 180 Tstat - Alt. Rewire - 3.29 gearing - Full Exhaust - Custom Tune
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  13. #13 Re: Dynomax Catback 
    GTPJOE90
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    Default 08-24-2009
    get her done!
    hogan 3inch DP u bend delete ,180*tstat, autolite 104s, LED interior, 4" FWI, 2000watt system, bullitt rims, zzp pistons, pems, alt rewire, thrush muffs, 3.4 zzp mps, transgo shift kit, triple edge performance trans. autometer triple pod :SOON: urlosn HPT PCM tune, HEADERS, 1.9's
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  14. #14 Re: Dynomax Catback 
    BwolfGT
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    Default 08-24-2009
    Hopefully getting it done tonight or tomorrow, depends on when I can use my friend's pickup to go get it.
    1998 GP GT - Topswap - Ported M90 - N* - 4" FWI - Poly Mounts - 3" DP - 180 Tstat - Alt. Rewire - 3.29 gearing - Full Exhaust - Custom Tune
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  15. #15 Re: Dynomax Catback 
    GTPJOE90
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    Default 08-24-2009
    lol u baught it but didnt pick it up yet?
    hogan 3inch DP u bend delete ,180*tstat, autolite 104s, LED interior, 4" FWI, 2000watt system, bullitt rims, zzp pistons, pems, alt rewire, thrush muffs, 3.4 zzp mps, transgo shift kit, triple edge performance trans. autometer triple pod :SOON: urlosn HPT PCM tune, HEADERS, 1.9's
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  16. #16 Re: Dynomax Catback 
    BwolfGT
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    Default 08-24-2009
    Ha yeah it's behind my buddy's shop.
    1998 GP GT - Topswap - Ported M90 - N* - 4" FWI - Poly Mounts - 3" DP - 180 Tstat - Alt. Rewire - 3.29 gearing - Full Exhaust - Custom Tune
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