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Mid pipe for M4 can and stock head pipes

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    Mid pipe for M4 can and stock head pipes

    I have a M4 full exhaust. But, I like the stock head pipes for looks and the fact the M4 head pipes, make for very limited ground clearance. I keep hanging the lip of my load/unload board from truck bed. I do have some nice stock head pipes. I even have a mid pipe, but the 2 to 1 junction is equal and the head pipes are slightly staggered. Should I contact M4 or are there fabricators on site here. Any other insight appreciated.

    #2
    Originally Posted by tommy dale View Post
    I have a M4 full exhaust. But, I like the stock head pipes for looks and the fact the M4 head pipes, make for very limited ground clearance.
    Out of curiosity, are you running stock suspension? I have an M4 on two of my bikes and have never decked the pipes. In fact, I have decked Woodcraft pegs - higher than stock - but not hit the pipes (thank goodness).
    ASMA #139

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      #3
      I read Tommys ground clearance problem as when loading and unloading the bike to/from the truck bed, not while riding... and yes, a new collector on the stock downpipes and a new exhaust can would be good. Or get a SuperTrapp or Kerker, they would help cure the same problem as they clear the underside of the engine. None of the mentioned exhaust solutions are readily avialable, you will have to buy used or make something or have someone making something...

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        #4
        Fuelexhausts.com has a collector/can that uses stock head pipes.

        If you were looking for a support group you're barking up the wrong tree. This place is fulla enablers dude. - Shooter77us

        The bitterness of low quality lingers long after the thrill of a low price has gone. - RacerX450

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          #5
          Originally Posted by JanM View Post
          I read Tommys ground clearance problem as when loading and unloading the bike to/from the truck bed, not while riding.
          Ah, that's what I get for reading and responding before waking up. Although, while loading into a Nissan Frontier I never managed to deck the exhaust. Still curious as to the suspension as mine are sitting higher than stock so that could be why I have never had any issues loading or unloading.
          ASMA #139

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            #6
            Another alternative is a longer ramp.
            ASMA #139

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              #7
              I like the FUEL slip on because it has a rest for the center stand. Well-built Y adapter for the stock headers.
              Bill,
              88 Blue Hawk (bike #39), 89 Red Hawk, 2021 Rebel 1100 (bike 41) Some Past/sold in reverse order:,FZ09,97 Magna #1&2 , 97 VFR750F, 87 VFR400R, 88 Hawk, 86 SRX 600, 77 RD400, 79 CB650, 04 VFR, 88 Blue Hawk, 89 Red Hawk, Yamaha SRX600, Harley 1200C, Yamaha RD400, Harley 883R, Yamaha 750 triple, Vlx600, Honda 450, Honda 400, CB550F, Kawasaki H1, BMW R69US, Yamaha R5C 350, Honda 160, Bridgestone 175, 1950 Harley 74 w/sidecar, 65 Harley 250 Sprint, 1948 Harley and my 1st bike-1941 Harley 74 knucklehead my dad gave in1963.

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                #8
                Originally Posted by Talon View Post
                Another alternative is a longer ramp.
                I am running a Wilburs shock 10mm longer than stock, with a 300N/MM or 1713PD/INS spring ( Tried 2 weaker springs, but the shock stroke is so tiny on this shock, practically no preload on the 300 works best for me). Load ramp is 8 foot and ford ranger is low to the ground. Part of my problem is the connector spring and it's wire brazeons are at the closest point to the ground, why they did not braze them on the pipes at 9 and 3 o'clock instead of 6?. But also, just don't like pipes that close to the ground. I like my M4 long carbon can, it's quiet and pretty. Was hoping that M4 done a special run for hawk forum at sometime in the past with options. I will do follow up on the tips given and also text M4, along with talking to some of my buddies that race stock cars and get special headers built.

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                  #9
                  Originally Posted by Talon View Post
                  Ah, that's what I get for reading and responding before waking up. Although, while loading into a Nissan Frontier I never managed to deck the exhaust. Still curious as to the suspension as mine are sitting higher than stock so that could be why I have never had any issues loading or unloading.
                  Not sure what year Frontier you have but I have not either in my 2013. Not even when I had it lifted with 32's on it. The tailgate height is lower lower than most trucks trucks though comparatively, which is why it is great for hauling Hawks. Also the ramp makes a difference. I use a ramp that has a hump on it, so a little harder to push on the bottom portion but it prevents from dragging stuff.
                  88 Blue Hawk GT - Under construction but rideable (guest approved)
                  89 BlackHawk 2.0 - On the lift and being assembled
                  90 Hawk GT (color as to yet be determined) - Still on the shelf in crates

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