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Cobra Power Pro 2 into 1 Exhaust

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  • Cobra Power Pro 2 into 1 Exhaust

    I've done the stage one on my stock exhaust, it has a nice sound, not too loud or too quiet nor is it raspy. I was looking at buying the Cobra Power Pro 2 into 1. Anyone have these installed? What can I expect from this exhaust? Will the performance be better or about the same as what I have now? What about sound? Louder will not bother me but a raspy or elephant farting underwater will. I do have the Speedstar BAK and dynojetted the carburetor. The Bike Runs really good now.
    One other thing, I'm thinking about painting the chrome speedometer bezel a Sateen Black as when the sun is just right, that thing blinds the living shit out of me...........................
    I March on the Road of Bones

  • #2
    The 2-1 exhaust will be louder and is the best exhaust for performance. You will probably need to rejet again after you install it. I say probably because I have no idea what main jet was installed now and I know the pilot jet can be changed from what is in there now if you used the one that come in the jet kit.

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    • #3
      Originally posted by davej View Post
      The 2-1 exhaust will be louder and is the best exhaust for performance. You will probably need to rejet again after you install it. I say probably because I have no idea what main jet was installed now and I know the pilot jet can be changed from what is in there now if you used the one that come in the jet kit.
      I have a 167.5 main jet, 37.5 Pilot jet, PMS 2.25t out, as for the Dynojet jet needle, all I can remember is if the needle is 5 groove, the clip is in the middle, or if 6 groove, 4 from the top. Its been a long time since I put the kit in, 06 me thinks.
      I March on the Road of Bones

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      • #4
        The 167.5 will not be OK , with a 1700 you want to install a 172.5 mikuni mainjet and clip in the 4th groove regardless of how many grooves. Install a #40 Mikuni pilot jet. The 37.5 dyno pilot jet flows the same amount of fuel as the stock mikuni 35 pilot jet. going up to the mikuni #40 will improve performance off idle and on acceleration at low speeds. leave the pms where it is at. Use Mikuni jets not dynojet brand.

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        • TimB
          TimB commented
          Editing a comment
          Why do you not take elevation into your #s?
          It makes a BIG difference. I run 3 main jet sizes smaller than those at sea level.

      • #5
        Originally posted by davej View Post
        The 167.5 will not be OK , with a 1700 you want to install a 172.5 mikuni mainjet and clip in the 4th groove regardless of how many grooves. Install a #40 Mikuni pilot jet. The 37.5 dyno pilot jet flows the same amount of fuel as the stock mikuni 35 pilot jet. going up to the mikuni #40 will improve performance off idle and on acceleration at low speeds. leave the pms where it is at. Use Mikuni jets not dynojet brand.
        4th groove from the top, right?
        I March on the Road of Bones

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        • #6
          yep 4 down from the flat end

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          • #7
            Thanks for the help davej
            I March on the Road of Bones

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            • #8
              Hey davej, I forgot to ask, what is the tone like?
              I March on the Road of Bones

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              • #9
                It has a low growl that sounds pretty cool if you ask me. Some complain of it sounding too much like a Jake Brake. I dont really hear that though myself.
                Go ahead, I dare ya.

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                • #10
                  Once I get it (finished) and the engine started I will let you know
                  Attached Files

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                  • #11
                    Originally posted by Rob in FL View Post
                    Once I get it (finished) and the engine started I will let you know
                    That is Nice!, Yeah man, let me know.
                    I March on the Road of Bones

                    Comment


                    • #12
                      Originally posted by Chief_10Beers View Post
                      I've done the stage one on my stock exhaust, it has a nice sound, not too loud or too quiet nor is it raspy. I was looking at buying the Cobra Power Pro 2 into 1. Anyone have these installed? What can I expect from this exhaust? Will the performance be better or about the same as what I have now? What about sound? Louder will not bother me but a raspy or elephant farting underwater will. I do have the Speedstar BAK and dynojetted the carburetor. The Bike Runs really good now.
                      One other thing, I'm thinking about painting the chrome speedometer bezel a Sateen Black as when the sun is just right, that thing blinds the living shit out of me...........................
                      If you have some decent speakers this might help?

                      https://youtu.be/38r9FG1ZmtY

                      Comment


                      • #13
                        I have the Cobra Power Pro on my 99 with the HK baffle installed has been on the bike for several years. it quitiens it down some and gives it a deeper tone. Performance increase was very noticeable. I did not touch my jetting after installation and it has been several years since it was jetted for a K&N. Don't ask me what the jets are and the needle settings it has been years since it was installed and the log I had for the mods has grown feet and departed.

                        Comment


                        • #14
                          Check out the Freedom Performance Combat 2-1 pipes. Jaybo has them. Real sweet sound and max performance.

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                          • #15
                            Originally posted by Shores View Post
                            Check out the Freedom Performance Combat 2-1 pipes. Jaybo has them. Real sweet sound and max performance.
                            I'm always open to options.
                            I March on the Road of Bones

                            Comment


                            • #16
                              Originally posted by NCB View Post

                              If you have some decent speakers this might help?

                              https://youtu.be/38r9FG1ZmtY
                              I like tone but not sure on the decel, wished it was a little longer.
                              I March on the Road of Bones

                              Comment


                              • #17
                                Originally posted by Chief_10Beers View Post

                                I like tone but not sure on the decel, wished it was a little longer.
                                not sure if these are the same pipes? But are 2 into 1

                                https://www.youtube.com/watch?v=cYFHAU4Xr4g

                                Comment


                                • #18
                                  Here's a Velocity Pro I put on my 08. It has removable baffles, but is pretty loud with baffles. The video is with baffles. It replaced Cobra drag pipes and the performance improvement was quite noticeable.
                                   

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