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New Exhaust

This is a discussion on New Exhaust within the GTO forums, part of the Vehicle Specific category; Okay guys and girls my flow-masters are making this nose like there's stuff bouncing around in there blah blah iam ...

  1. #1
    Member ledesma54's Avatar
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    Red
    04 GTO

    New Exhaust

    Okay guys and girls my flow-masters are making this nose like there's stuff bouncing around in there blah blah iam just going to get new mufflers, i have LT Heads and no cats iam trying to figure out what i should go with. I heard i was losing horsepower with the flow-master so i don't want to lose horsepower so there's what iam looking at.

  2. #2
    footbrake racer racer426's Avatar
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    silver
    2004 gto

    pipes

    slp kit is quicker on my 04. had flow m's and they were almost 2 tenths slower.

  3. #3
    Member ledesma54's Avatar
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    Red
    04 GTO

    How loud do you guys think it would be if i just run straight pipes with no mufflers and resonators. Ive been hearing alot of things about slp

  4. #4
    Junior Member
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    Red
    04 Pontiac GTO

    slp has mufflers... small ones... ive heard a lot about drone on SLP, and that its just obnoxiously loud...

    and Borla sounds godly...

    James

  5. #5
    Nitrous Tuner LS2Tuner's Avatar
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    I would put some Pro Street Spin Tech's on it.

    http://www.spintechmufflers.com/spin...ntechindex.asp

    Straight pipe sounds like shit to me. Way too much resonating!!!
    Don't be afraid of the bottle!!! Be afraid of your tune!!!

  6. #6
    cutting and welding mark21742's Avatar
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    hugger orange
    2004

    Quote Originally Posted by ledesma54 View Post
    How loud do you guys think it would be if i just run straight pipes with no mufflers and resonators. Ive been hearing alot of things about slp
    I ran strait pipes on my 04 for a good while, till I got my headers, then I put mufflers on... headers 3" dual exhaust with the mufflers I went with is louder than stock manifolds and strait pipe I had

  7. #7
    Nitrous Tuner LS2Tuner's Avatar
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    Quote Originally Posted by PatrizioD View Post
    LS2Tuner, Would you recommend the Spintechs for an 06 LS2? Ive heard great things about Spintechs. Also something else ledesma54 might not have thought of... electric cutouts. If you do the cutouts right from the headers and before the cat, thats basically like straight pipes, am I correct?
    Yes I would.
    Well with the straight pipes you gain some back pressure and exhaust velocity due to the pipe. To see a real gain with the cutouts open other than the trick in your mind due to the loudness it must be tuned for power when the cutout's are opened. Which will also hurt drivability when closed and running mufflers.
    We even put mufflers on ALL the race cars now including 7 second mountain motor door cars.

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