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  1. #1 hello 
    SE Level Member ssiebor14's Avatar
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    How would a cut off muffler sound on a this kind of pontiac
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  2. #2 Re: hello 
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    You want some kind of sound dampening for these engines due to how raspy they sound. I had broken a bolt for the flange that keeps the downpipe and collector fitted together and was very ready to burn the d* car. It sounded like a very loud tractor. My exhaust setup is in my signature and am VERY happy with it. These cars sound like absolute garbage when the exhaust is opened up too much. There are cut-outs for these cars, but those should ONLY be used for the track just to save yourself from driving a car that has an embarrassing tone. If anything, get a high-flow catalytic convertor, delete the resonator, and stick with the stock mufflers. Anything beyond that would drive you to hating the car.

    Colleen
    : CAI, HV3, 2.5" d/p w/h/f cat. Full suspension, PowerSlots w/Hawk HPS, GR2s, Sonar projectors. Needs tune. Awaiting install of FBod brakes.
    Shianne: 98 L36 MM5. Good start to a LONG project.
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  3. #3 Re: hello 
    GTX Level Member dbextreme's Avatar
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    I wouldn't even delete the resonator. The resonator is what cuts down on your drone and rasp... Before I top swapped, I had a 2.5dp Magnaflow Highflow cat, Ubend delete, deleted my resonator, dumped into Blowmaster's.... (granted the mufflers didn't help) It sounded good at idle, but giving it throttle, it was VERY raspy.
    1999 GPGT - L26, Ported Top Swap, XP Cam, 3.2 MPS, 42.5#, N*, LQ4, SD Headers, Double Roller, TEP Race Trans w/Stand alone Cooler, Precision Industries 3000RPM Stall, 75 Shot Nitrous Express Proton Kit w/Purge, 3" Dual Borla Pro XS, Corsa Dual 3.5 Tips, 5% Tint
    1995 Firebird Formula - Under the Knife
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  4. #4 Re: hello 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Quote Originally Posted by ssiebor14 View Post
    How would a cut off muffler sound on a this kind of pontiac
    Like poop.

    SMGPFC Member #1
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  5. #5 Re: hello 
    SE Level Member ssiebor14's Avatar
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    You sure it'll sound bad?
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  6. #6 Re: hello 
    I live here. DirtDog's Avatar
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    Yellow and yes on the 3.8 3.1 & 3.4
    http://www.grandprixforums.net/my-06-gp-gxp-72403.html
    OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>

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  7. #7 Re: hello 
    SE Level Member ssiebor14's Avatar
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    Cause I straight piped it and it sound boss
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  8. #8 Re: hello 
    I live here. DirtDog's Avatar
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    I've never heard a really good sounding 3.8l motor before. I mean even super modded ones don't sound the best. I mean u can yell they have power but the exhaust just doesn't do it good.
    Why u wanting to cut it out
    http://www.grandprixforums.net/my-06-gp-gxp-72403.html
    OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>

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  9. #9 Re: hello 
    SE Level Member ssiebor14's Avatar
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    I want a deeper sound to it
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  10. #10 Re: hello 
    I live here. DirtDog's Avatar
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    Good luck
    If that's what u want get a 5.3L
    http://www.grandprixforums.net/my-06-gp-gxp-72403.html
    OBX headers, TEP tranny cooler, ls1 IM fuel rails and injectors, ls2 TB, ls7 MAF, full custom exhaust, Quad retro headlights, full out front and rear suspension work, tuned by HPT by me 8====>

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  11. #11 Re: hello 
    GrandPrix Junkie Schmidty's Avatar
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    ^^^ this.. i'm thinking of doing a muffler delete.
    2007 GXP
    Quote Originally Posted by Scottydoggs View Post
    if your car whines and its not the p/s pump, let it be heard!!
    Lies are just great stories that someone ruins with the truth.
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  12. #12 Re: hello 
    SE Level Member ssiebor14's Avatar
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    For me it sounds good with the muffler cut out
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  13. #13 Re: hello 
    GrandPrix Junkie Schmidty's Avatar
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    whatever floats your boat..
    2007 GXP
    Quote Originally Posted by Scottydoggs View Post
    if your car whines and its not the p/s pump, let it be heard!!
    Lies are just great stories that someone ruins with the truth.
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  14. #14 Re: hello 
    GXP Level Member Timing's Avatar
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    I cut out my res and a few weeks later after various people telling me, "Your car used to sound good now it sounds like ****" and me saying ya i know i clamped that hoe back in there and now i get compliments again on my exhaust and its stock.

    Ill never remove the res again. Although i might throw some thrush mufflers on there soon. For cheap mufflers imo they sound better than most.
    08 MazdaSpeed 3- Treadstone tr8l, Ebay Piping, Ported intake,Thermal gasket, Cs Injector Seals,Cobb intake/inlet, Autotech Internals, Poly mounts, Speed Daddy DP, Magnaflow CB,
    RPF1 17x9 255/45 Direzza Zll
    04 COMPG- Vs, getrag 284 RIP
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  15. #15 Re: hello 
    SE Level Member ssiebor14's Avatar
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    Yeah I'm getting a thrush on mine. They do sound amazing for cheap
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