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Old 07-31-2013, 04:31 PM   #1
Rhinorear OP
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R100GS PD After Market Exhaust

On the search for another muffler alternative for the 94 PD.

SuperTrapp doesn't make theirs any more and haven't been able to locate a new one. Part Number 1811013

Ya there is Stainintune but MAN $700 for just the muffler is a little out of my league. I already have the collector.

But I just found out about Keihan and was wondering if anybody has had any dealings with these people or their product? It is more with in my price range.

I've found their UK site but an out fit called bmw2vavle.com here in the states I think is trying to line me out with one. Anybody dealt with them?

So any assistance or advice anybody could give would be appreciated.
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Old 07-31-2013, 04:35 PM   #2
Houseoffubar
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If you want something custom fab'ed, I or some others here can do a quite nice job, for a bit more reasonable price.
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Old 07-31-2013, 05:23 PM   #3
Prutser
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The keihan's are really not great.
I ordered one a few weeks ago and its to ugly to sell it !!! The welds are the worst ever and they mess up the performance of your bike. Specially with a Y-pipe (depending on which one) you will loose most of the low down torque.

Good luck.
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Old 07-31-2013, 05:32 PM   #4
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Keihan

Huh

well, I like mine! the pipe was on a wrecked G/S I got, the headers and collector were a bit bent, so I got those from Keihan.

I think it looks and runs quite well.

tiny bit louder, sharper bark, I'd say.



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Old 07-31-2013, 05:44 PM   #5
Prutser
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Quote:
Originally Posted by Mendodave View Post
Huh

well, I like mine! the pipe was on a wrecked G/S I got, the headers and collector were a bit bent, so I got those from Keihan.

I think it looks and runs quite well.

tiny bit louder, sharper bark, I'd say.



Mendo
It's something you get used to but if it was on my bike I would check what stainless is worth per kilogram and sell it
I do ride a lot of different airheads but the ones with there gs exhausts do not have the best torque curve for sure.

I have seen better looking ones from them than the one I got the last time.
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Old 07-31-2013, 06:01 PM   #6
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just in case you look at Sito...they do sound decent but the mount will break at the foot peg and they rust on the surface rather quickly.


I have a ProDuro on my G/S which was made for a R100GS, nice stainless steel and good quality but I think it is NLA.
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Old 07-31-2013, 07:53 PM   #7
Solo Lobo
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Quote:
Originally Posted by Houseoffubar View Post
If you want something custom fab'ed, I or some others here can do a quite nice job, for a bit more reasonable price.
Check Houseo's work... it is absolutely top quality! See Airhead Wrangler's thread for proof and pictures
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So I sold my GS and went shopping for a G/S!
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Old 07-31-2013, 08:04 PM   #8
lamotovita
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I ordered the Keihan several years ago direct from them in the UK. I'm running it but I've always been dissapointed. The mounts don't line up well and as I recall I had to find my own clamp for the muffler joint.
Yes it lost a small amount of low end response, but it probably gained that much on top. I think thats typical of aftermarket mufflers (except maybe Staintune).
In hindsight I should have had my stock muffler repaired. Live and learn.
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Old 07-31-2013, 08:16 PM   #9
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nice work of houseoffubar!

I have a Gletter mottoradtechnik pipe for sale in the flea market..but....

1. I'm in Australia (but will post no worries)
2. If Houseoffubar were even not so close to me I'd be annoying him already..check that work out...nice.
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Old 07-31-2013, 11:09 PM   #10
Rob Farmer
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Keihan make really nice exhausts for the road orientated BMW bikes but seem to feel they don't have to make any effort with the GS machines (with the exception of the g/s collector box)

I have the Keihan silencer fitted to my 100PD, I've also just taken off the Keihan downpipes and fitted standard ones with the crossover pipe.

The silencer is nicely made and works ok. It sounds slightly tinnier than the stock GS silencer and gets a little louder as time goes on. I bought mine 5 years ago and haven't had any problems with it.

Not the best shot in the world but it's the only one I can find that shows the silencer. At least they look like the originals instead of the monstrosities made by other exhaust manufacturers (sito, laser etc)


Rob Farmer screwed with this post 07-31-2013 at 11:15 PM
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Old 08-01-2013, 12:21 AM   #11
orangebear
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Quote:
Originally Posted by One Less Harley View Post
just in case you look at Sito...they do sound decent but the mount will break at the foot peg and they rust on the surface rather quickly.


I have a ProDuro on my G/S which was made for a R100GS, nice stainless steel and good quality but I think it is NLA.
My sito was crap all the paint came off quick and it roted even after I re painted.
I got a nice 2rd full stainless steel on off eBay it was not cheap but cheaper then a branded new keiham Ss cost 360 the add on the cost of down pipes and the y pieces.

If you don't need the rear pegs then any off road silencer will fit you just need a bit pipe to join the y to the silencer
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Old 08-01-2013, 06:45 AM   #12
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That must be why the Sito has been discontinued. After my inquiry at 2vavle they said it would be removed from the website.

I'll be interested to see what pipe they suggest for me today......will advise.
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Old 08-01-2013, 06:51 AM   #13
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Quote:
Originally Posted by SOLO LOBO View Post
Check Houseo's work... it is absolutely top quality! See Airhead Wrangler's thread for proof and pictures
House, do you have something that fits similar to the stock set up? I kind of prefer the protected routing of the stock muffler than a cone sticking out further to the side, but am interested. American made....wooooohooo!

Lobo can you provide the link to airheads thread? Thanks!
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Old 08-01-2013, 06:53 AM   #14
Rhinorear OP
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Quote:
Originally Posted by Tanami View Post
I have a Gletter mottoradtechnik pipe for sale in the flea market..but....

1. I'm in Australia (but will post no worries)
2. If Houseoffubar were even not so close to me I'd be annoying him already..check that work out...nice.

Tamai....what did you think of the Gletter? Why are selling it? Is the pipe protected at all by the bag mount or is it exposed, prone to scuffing if the bike is laid over?
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Old 08-01-2013, 10:12 AM   #15
Ras Thurlo
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Quote:
Originally Posted by Rob Farmer View Post
Keihan make really nice exhausts for the road orientated BMW bikes but seem to feel they don't have to make any effort with the GS machines (with the exception of the g/s collector box)
anyone tried a Keihan 100GS collector box?

At this stage its a toss-up between a new Keihan and a secondhand original
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