Author Topic: k75 aftermarket pipe on ebay  (Read 237 times)

Offline Chaos

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k75 aftermarket pipe on ebay
« on: February 04, 2018, 01:42:07 PM »
stumbled across this, great price, not sure brand, may be a MAC.  These things are scarce and the seller does not know what he has!  If nobody grabs it I may buy it and resell it for $200!
https://www.ebay.com/itm/1987-BMW-K75S-EXHAUST-PIPE-MUFFLER/173060972543?fits=Model%3AK75S&epid=19012219530&hash=item284b3cdfff:g:ZdwAAOSwxixaRXay&vxp=mtr
1987 K75S    VIN 0231
Original litter & owner
185,000 miles and 5 paint jobs
2012 Ural Gear-Up
(BMW's bastard step child)

Offline Martin

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Re: k75 aftermarket pipe on ebay
« Reply #1 on: February 04, 2018, 01:52:22 PM »
Gee that was fast, you posted, I checked and it's sold. :dunno
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline Chaos

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  • Posts: 1882
  • Mars needs women!
Re: k75 aftermarket pipe on ebay
« Reply #2 on: February 04, 2018, 02:00:08 PM »
wonder if it was someone here, hope so
1987 K75S    VIN 0231
Original litter & owner
185,000 miles and 5 paint jobs
2012 Ural Gear-Up
(BMW's bastard step child)

Offline Martin

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  • Posts: 3073
Re: k75 aftermarket pipe on ebay
« Reply #3 on: February 04, 2018, 02:12:43 PM »
I was offered a Staintune a few weeks ago while looking at a stock muffler. I had visions of modifying the stock one, fortunately common sense kicked in. However from what I have been able to find out over the years is there is no performance advantage to be gained. Only noise. :dunno2:
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline The Mighty Gryphon

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  • dyke chik wit attatood
Re: k75 aftermarket pipe on ebay
« Reply #4 on: February 04, 2018, 02:13:46 PM »
LPSL
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '92K100RS White, '94 K75S Dakar Yellow
"Dohn f wit me, honkey, cuz I dindu nuffin'"

Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'94 K75S "Cheetos"
'92 K100RS "Moby Brick"

Past:
'82 Honda FT500, '80 Honda XR185, '78 Honda XL125, '76 Honda XL125, '74 Honda XL125, '71 Ossa Pioneer, '68 Kawasaki 175

Offline Chaos

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  • Posts: 1882
  • Mars needs women!
Re: k75 aftermarket pipe on ebay
« Reply #5 on: February 04, 2018, 02:28:16 PM »
... from what I have been able to find out over the years is there is no performance advantage to be gained. Only noise. :dunno2:
Regards Martin.

Absolutely true.  But I love the looks and sound of the MAC I scored back in 2012.  And it's held up very well.  The stock muffler's whine annoyed the hell out of me and the MAC has a nice tone that almost disappears at highway speeds.  I also have the airbox delete K&N cone filter that also adds nothing to the bike's performance but looks cool.  Actually, freeing up that space under the tank may make it run cooler.
1987 K75S    VIN 0231
Original litter & owner
185,000 miles and 5 paint jobs
2012 Ural Gear-Up
(BMW's bastard step child)

Offline Martin

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  • Posts: 3073
Re: k75 aftermarket pipe on ebay
« Reply #6 on: February 04, 2018, 02:33:31 PM »
The whine in mine disappeared after I stopped carrying a pillion. :hehehe
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline lmiklosy

  • One Less Car
  • Motobrick Curious
  • Posts: 33
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Re: k75 aftermarket pipe on ebay
« Reply #7 on: February 06, 2018, 01:15:23 AM »
I have a Staintune muffler that needs a new finish, looks burned-up like the MAC on this post. The plating looks like brushed stainless over steel.   Has anyone had success in re-plating these? 

Has anyone noticed lower fuel economy with aftermarket (through) pipes?

I had to look-up "pillion", now I'm the one laughing.
  • Laguna Beach, CA
  • 1993 K75S-Mystic, 1981 R100RS-RedBaron, 1991 K75S-Marrakesh

Offline Martin

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Re: k75 aftermarket pipe on ebay
« Reply #8 on: February 06, 2018, 01:43:39 AM »
You can try cleaning with very fine wet and dry and follow up with stainless polish and stainless cleaner to maintain. A bit labour intensive, but you will have the satisfaction of a job well done. :clap: I cheated on my OEM muffler and used 6" buffing wheels on my bench grinder, for the hard to get places I used a air grinder with cotton mop attachments. You have to be careful with some aftermarket mufflers they are not built as substantial as OEM in wall thickness, and can ding easily. I do seem to remember somewhere BMW recommending OEM mufflers be cleaned with French chalk only.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.