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Keeping the original exhaust appearance

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    Keeping the original exhaust appearance

    Does anyone know if it's possible to keep the original 'stubby' exhaust but modify it for better performance?

    I really like the stubby exhaust and I don't want to change the look of the bike - let's face it, in 10 years time it's going to be recognised as a true 'classic' by everyone else too, not just us here
    Bang your head here for an instant IQ rating

    #2
    I've posted this link a few times before... so just to clarify I don't work for them!! I just have one on my bike and love the sound of it.

    SuperTrapp catalogue available here:
    http://www.supertrapp.com/images/pdfs/st-catalog.pdf Look at page 54, top of. They look kind of similar to the original.
    -----------------------
    88 Bros
    93 Supra TT 6sp
    03 Sh*tbox Opel Combo
    -----------------------

    Comment


      #3
      The Laser system looks stock and is pretty quiet.
      Quality is first rate!

      Comment


        #4
        You can drill out the rivets and remove the baffle in the stock exhaust. Below is a snip from the archives of the HawkGT mailing list:


        FYI
        There is a baffle unit that looks somewhat like an old coke bottle. That is
        to say it has two different sections with two different diameters.
        Here is more than you may want to know about the "Selden Deemer" muffler
        mod. I copied this from an old email I had saved.

        Here is more information about removing the baffle from the muffler.
        #1 Use a small drill bit (1/8"?) and drill out the rivets. I like to
        use a drill bit that drills into the rivet just enough to cause the rivet
        head to spin off on the bit. Then use a small punch to push the rest of the
        rivet into the muffler.
        #2 Now here comes the fun. The baffle is difficult to get out. It
        has been in there for over 14 years and is rusted in place. I used a very
        small blunt punch to tap a little on the flange edges of each rivet hole and
        rotate the baffle back and forth to break the grip of the rust. IMHO If you
        don't do something like this Hell will freeze over before you get the baffle
        out.

        Subject: RE: Stock Exhaust Question

        Selden, your ASCII drawing did the same stunt that mine did. Truncated
        itself into gibberish. But it was good for a laugh anyway. How about giving
        me a measurement from the outer flange on the core (where the rivets
        penetrate) to the holes you drilled? I suspect it is about 3 1/4 or 4 1/4
        inches and the holes are in the smaller diameter portion of the core.

        Selden Deemer wrote:

        > Shelby Owens has finally motivated me to pull the baffle core from my
        > muffler to refresh my memory about how I drilled it. The core is
        > shaped somewhat like a bottle, with a short body and a long neck.

        > The "neck" of the bottle plugs into an opening inside the body of the
        > muffler. I drilled 2 pairs of 1/4" diameter holes at the two X's on
        > the centerline. If you want more noise, a 3rd pair of holes could be
        > drilled between these, as indicated by the top X, and yielding 6 holes.
        > The theory behind this mod (I make no solid claims) is that some of
        > the exhaust gas is permitted to flow through the new holes, instead of
        > being routed back through the baffles. In theory, this reduces back
        > pressure, and increasing power and noise. I haven't done the dyno
        > thing, but seat of the pants says that this, combined with a relieved
        > air box lets the engine pull very strongly between 5000 rpm and redline.
        > A stock Hawk feels strangled in comparison.
        >
        > Unless you really get carried away with holes, it doesn't make a huge
        > difference in the exhaust note, which just gets a little deeper.
        > Remember, you can always make a small hole bigger, while the opposite
        > requires a lot more work.
        Mark
        88 HawkGT (original owner)
        99 Concours
        02 VFR800

        Comment


          #5
          i would love to see any pics/ links to the lazer stuff. i looked briefly but i didn't find much.

          as for the supertrap, are they still selling the headers, or do those have to be bought used?

          thanks

          tom
          '88 hawk with sporty mods
          '76 bmw r90 with sporty mods
          '71 honda cb 350 racebike

          Comment


            #6
            Thanks for the info: I'll have to try again with the supertrapp catalogue as it appears to be offline or something, and I couldn't find anything about the Lazer/Laser systems.
            Bang your head here for an instant IQ rating

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              #7
              Here's a movie of the pro stock laser can...
              With sound...
              http://video.google.nl/videoplay?doc...14100883117466

              I like the looks of the original can too.. but the sound is awefull... even
              with the modification.... The laser can seems like a good replacement...
              1989 type I - F2 front end - Technoflex rear shock - K&N Filter - Dynojet kit - Braking Discs - Rizoma indicators - Rizoma mirrors - hiperform exhaust... hmmm what's next?!

              Comment


                #8
                http://www.spieglerusa.com/ has them BUT at $411US they can keep it!

                Comment


                  #9
                  Hi Richard, to the regret of many Hawkster the SuperTrapp system
                  has not been available for about 5 years now!

                  BTW Is this SuperTrapp muffler "stubby" enough?
                  Looka there itīs the stock headers with a BOS y-collector (~ 60.- GBP)
                  to fit a Suzuki SV650! Looks trick, doesnīt it!

                  Comment


                    #10
                    Hey! what happened to the pic??
                    The Bos Y collector.. that's what I'm looking for!
                    I'm planning to fit a stubby cabon can in the place
                    the stock can sits now.... Just need a collector...
                    1989 type I - F2 front end - Technoflex rear shock - K&N Filter - Dynojet kit - Braking Discs - Rizoma indicators - Rizoma mirrors - hiperform exhaust... hmmm what's next?!

                    Comment


                      #11
                      yeah if i could keep the stock headers and just grab the collector and the stubby, i'd be o.k with that as well.

                      where can you get em?

                      thanks,
                      '88 hawk with sporty mods
                      '76 bmw r90 with sporty mods
                      '71 honda cb 350 racebike

                      Comment


                        #12
                        Originally Posted by fabitappi
                        Hi Richard, to the regret of many Hawkster the SuperTrapp system
                        has not been available for about 5 years now!

                        BTW Is this SuperTrapp muffler "stubby" enough?
                        Looka there itīs the stock headers with a BOS y-collector (~ 60.- GBP)
                        to fit a Suzuki SV650! Looks trick, doesnīt it!
                        That sure looks sweet!
                        1989 type I - F2 front end - Technoflex rear shock - K&N Filter - Dynojet kit - Braking Discs - Rizoma indicators - Rizoma mirrors - hiperform exhaust... hmmm what's next?!

                        Comment


                          #13
                          Originally Posted by fabitappi
                          Hi Richard, to the regret of many Hawkster the SuperTrapp system
                          has not been available for about 5 years now!

                          BTW Is this SuperTrapp muffler "stubby" enough?
                          Looka there itīs the stock headers with a BOS y-collector (~ 60.- GBP)
                          to fit a Suzuki SV650! Looks trick, doesnīt it!
                          Dammit - that looks very nice. I think I might modify the standard one but that will have to wait until I've got bike no. 2 (which is gonna be a VFR750 or BMW K75)
                          Bang your head here for an instant IQ rating

                          Comment


                            #14
                            There is a complete sytem without a can available on ebay germany now
                            http://cgi.ebay.de/SV-650-SV650-Ausp...QQcmdZViewItem

                            the manucfaturer....
                            http://www.bos-exhausts.com/

                            Comment


                              #15
                              That's for an SV650...which, as we all know, is just a cheap imitation
                              Bang your head here for an instant IQ rating

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