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Author Topic: kerker 4 into one just bought one.  (Read 1982 times)

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Offline cb650 bobber

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kerker 4 into one just bought one.
« on: July 25, 2007, 08:15:10 AM »
I just bought this exhaust looking forward to it. Does anyone have one of these kerker 4 into ones and do you like how it sounds. Does it have removable baffles.
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Offline mick750F

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Re: kerker 4 into one just bought one.
« Reply #1 on: July 25, 2007, 09:38:38 AM »
 Are you sure that's a Kerker muffler? I'm no expert but I haven't seen a Kerker muffler like that one. Kerker mufflers do have replaceable baffles. There's a street baffle and 2 or 3 competition baffles.

Mike
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Offline tinyrobot

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Re: kerker 4 into one just bought one.
« Reply #2 on: July 25, 2007, 09:40:40 AM »
looks like a MAC system
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Offline edbikerii

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Re: kerker 4 into one just bought one.
« Reply #3 on: July 25, 2007, 10:00:33 AM »
MACs have removable baffles, too.
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Offline cb650 bobber

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Re: kerker 4 into one just bought one.
« Reply #4 on: July 25, 2007, 10:19:09 AM »
I am not to worried about what it is I have a 4 into 4 and like teh 4 into one look better and got it for 58.00 with shipping included. So I am pretty happy.
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Offline Steve F

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Re: kerker 4 into one just bought one.
« Reply #5 on: July 25, 2007, 11:04:33 AM »
My KERKER has a removable baffle, and you can replace the fiberglass if necessary.  I didn't like how quiet the "stock" Kerker was, so out came the baffle.  I kept the end cap on so it wasn't TOO loud  ;)  The sound isn't quite as throaty as a MAC, in my opinion.
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fuzzybutt

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Re: kerker 4 into one just bought one.
« Reply #6 on: July 25, 2007, 02:16:29 PM »
Steve, did it still run ok with just the endcap in? i have a fairly new kerker exhaust on my 750k and it's just too damn quiet.
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Offline Steve F

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Re: kerker 4 into one just bought one.
« Reply #7 on: July 25, 2007, 02:43:39 PM »
Quote from: fuzzybutt on July 25, 2007, 02:16:29 PM
Steve, did it still run ok with just the endcap in? i have a fairly new kerker exhaust on my 750k and it's just too damn quiet.
Yeah, it runs like a top. (this is my "mostly-stock" red 750f and not the one in my avitar) The end cap opening is only about 1-1/4" dia., so it's not too open.  The Kerker baffle is a straight-through pipe, with holes punched through most of its' length, and is wrapped in fiberglass.  Your typical "glass-pack".  So I thought that since the endcap opening was just slightly less than the dia. of the baffle tube, it wouldn't hurt anything.  I really had no issues with the jetting, but it could stand to be a bit richer on the main jets.
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Offline Chris Schneiter

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Re: kerker 4 into one just bought one.
« Reply #8 on: July 26, 2007, 07:23:41 AM »
I have either a Kerker or a Mac...not sure....mine sounds like a Formula One Racecar! I ran into a guy last week though, who had a Kerker and took out the packing but put the baffle back in for back pressure...it had a really great, low throaty sound...
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Offline Bodi

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Re: kerker 4 into one just bought one.
« Reply #9 on: July 26, 2007, 07:44:59 AM »
That looks like a Kerker header with a generic muffler attached. The 70's Kerker mufflers were pretty famous for rusting out. If it is a Kerker it should have the name pretty obviousy displayed, but original Kerker mufflers on black systems were black and more of a megaphone shape.
If you can get a Supertrapp universal muffler that fits the Kerker outlet (I think this size has been discontinued) you can tune the exhaust for back pressure and sound by adding/subtracting diffuser discs and removing some of the fibreglass packing. Or maybe this muffler is exactly what you want.
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