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MOTOBRICK MARKETPLACE => NM ~ Not Mine - Just Compeled To Post It Up => Topic started by: Chaos on February 04, 2018, 01:42:07 PM

Title: k75 aftermarket pipe on ebay
Post by: Chaos 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
Title: Re: k75 aftermarket pipe on ebay
Post by: Martin on February 04, 2018, 01:52:22 PM: Gee that was fast, you posted, I checked and it's sold. :dunno
Regards Martin.
Title: Re: k75 aftermarket pipe on ebay
Post by: Chaos on February 04, 2018, 02:00:08 PM: wonder if it was someone here, hope so
Title: Re: k75 aftermarket pipe on ebay
Post by: Martin 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.
Title: Re: k75 aftermarket pipe on ebay
Post by: The Mighty Gryphon on February 04, 2018, 02:13:46 PM: LPSL
Title: Re: k75 aftermarket pipe on ebay
Post by: Chaos on February 04, 2018, 02:28:16 PM: Quote from: Martin on February 04, 2018, 02:12:43 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.
Title: Re: k75 aftermarket pipe on ebay
Post by: Martin on February 04, 2018, 02:33:31 PM: The whine in mine disappeared after I stopped carrying a pillion. :hehehe
Regards Martin.
Title: Re: k75 aftermarket pipe on ebay
Post by: lmiklosy 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.
Title: Re: k75 aftermarket pipe on ebay
Post by: Martin 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.