New 4-1 exhasts for GS750, 1000

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  • Allie
    Forum Guru
    • May 2010
    • 7682
    • New Jersey

    #1

    New 4-1 exhasts for GS750, 1000

    Z-1 is carrying a new product, looks pretty promising especially since Vance and Hines no longer makes pipes for us.

    "Men will never be free until Mark learns to do The Twist."

    -Denis D'shaker

    79 GS750N
  • allojohn
    Forum Sage
    Past Site Supporter
    Super Site Supporter
    • Jan 2011
    • 3515
    • NoMo, MN

    #2
    Stainless steel Delkevic pipes are superb, thinner material and a good bit lighter than the V&H pipe - plus a lovely exhaust note...
    -Mal

    "The only reason for time is so that everything doesn't happen at once." - B. Banzai
    ___________

    78 GS750E

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    • salty_monk
      Forum LongTimer
      GSResource Superstar
      Past Site Supporter
      Super Site Supporter
      • Oct 2006
      • 14001
      • London, UK to Redondo Beach, California

      #3
      Yeah I had the race one on the 1100. It seemed like a good pipe. Nicer than a V&H for sure...
      1980 GS1000G - Sold
      1978 GS1000E - Finished!
      1980 GS550E - Fixed & given to a friend
      1983 GS750ES Special - Sold
      2009 KLR 650 - Sold - gone to TX!
      1982 GS1100G - Rebuilt and finished. - Sold
      2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

      www.parasiticsanalytics.com

      TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

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      • Grimly
        Forum Guru
        Past Site Supporter
        Super Site Supporter
        • Sep 2012
        • 5761
        • Ireland

        #4
        My Delko sounds absolutely stonkin' at 6K+ under power, but IT'S TOO DAMN LOUD!
        Dave
        '79 GS850GN '80 GS850GT
        Only a dog knows why a motorcyclist sticks his head out of a car window

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        • rphillips
          Forum Guru
          Past Site Supporter
          Super Site Supporter
          • Jun 2005
          • 7611
          • Norene TN

          #5
          Hey Dave, Not familiar with the Delkevic pipes, may not be possible for them, but in yrs past I made a few baffles for different 4 into 1 pipes. The longer the inside tube or the smaller the dia. of the inside tube, the more fiberglass could be packed inside them installed. More fiberglass = deeper, quieter tone.
          1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

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          • Grimly
            Forum Guru
            Past Site Supporter
            Super Site Supporter
            • Sep 2012
            • 5761
            • Ireland

            #6
            Originally posted by rphillips
            Hey Dave, Not familiar with the Delkevic pipes, may not be possible for them, but in yrs past I made a few baffles for different 4 into 1 pipes. The longer the inside tube or the smaller the dia. of the inside tube, the more fiberglass could be packed inside them installed. More fiberglass = deeper, quieter tone.
            I'm definitely looking into making an internal baffled insert. The original factory baffle is about 6" long straight-through with perf metal and fibre. I can extend that by a foot or so. Before I bought the megaphone muffler, I'd only bought the downpipes and matched an H-D muffler to them. That wasn't too bad, but the reason I eventually bought the factory mega was to keep it matched the way Delko meant it to be (which was basically pretty bloody rubbish, to be honest).
            I've since welded on a Supertrapp pack of discs to the outlet, which do actually attenuate the noise a bit, but not as much as I want them to.
            Dave
            '79 GS850GN '80 GS850GT
            Only a dog knows why a motorcyclist sticks his head out of a car window

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            • rphillips
              Forum Guru
              Past Site Supporter
              Super Site Supporter
              • Jun 2005
              • 7611
              • Norene TN

              #7
              Sounds like a plan... Good luck
              1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

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              • Guest

                #8
                I ran the delkevic 4 into 1 with the straight muffler for a about 2 years. I tossed mine because the stainless would discolor extremely quickly (polishing the headers was a monthly chore) and it’s extremely difficult to keep sealed so popping on decel was problematic. Other than that it sounded pretty good when you’d open it up.

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