RE: Exhaust Systems

["Eric Renneisen" <racingiron@xxxxxxxxxxx>]

Similar experience here.  I bought a used D&D Carbon setup for my '94
RS.  HP was probably up a bit, but it's impossible to tell w/o a dyno.
Most who proclaim a power increase likely do so because it sounds
faster, not because they can actually feel a difference.  Mine sounded
much "faster."  No big deal at speed, but like you, I didn't like the
negative attention in towns.

I pulled the muffler off and grafted a lightly used Yamaha R6 can (cheap
on eBay) to the D&D mid-pipe.  Lots of folks have done this, using a
mid-pipe designed for the bike and various stock sportbike cans.  This
one has an aluminum shell which nicely matches the silver tones of the
BMW mechanical bits.  The innards are made of titanium (for light
weight), and there's even a small catalytic converter disc on the inlet
side, so I can still claim to be somewhat green.

Now I don't have the stock cat cooking my boots and the tranny fluid,
I've dropped several pounds from stock, and I don't have to worry about
ever repacking the muffler.  Best of all, the sound levels are exactly
where they should be, IMHO.  More aggressive than stock, but nowhere
near the obnoxious D&D.  Putting it all together was a PITA, but well
worth it.

Hmmmm... I just finished putting FZ1 mirrors on the bike today (I can
actually SEE what's behind me now!).  Maybe I should've just started
with a Yamaha... Nah.

Eric Renneisen
'94 R1100RS
'88 R100RT
'72 R75/5

- -----Original Message-----
From: owner-oilheads@xxxxxxxxx [mailto:owner-oilheads@xxxxxxxxx] On
Behalf Of Gary Bechtold
Sent: Saturday, June 26, 2004 1:34 PM
To: oilheads-digest
Subject: Exhaust Systems


Last year I tried the Two brothers "Cat Eliminator" system on my '94 RS.

It seemed a little stronger in the mid range, but it was so loud that I
found that the performance was reduced - here's why: anytime I was in
town or populated areas I had to use VERY light throttle and go UP a
gear or two to keep the noise down. Whenever I went by a cop I pulled in
the clutch and let the bike coast by. It was louder than any Harley I've
heard, and the sound quality was "meaner" than a Harley. I like to run
down to Deals Gap in the Smokies every summer and I wouldn't want to
cruise through the smaller southern towns with the Two Bros. system !!!

I put the Two Brothers on Ebay a few weeks ago and it was quickly
snapped up so I was able to recoup about 3/4 of my money. I'm back to a
stock exhaust system which I also purchased on Ebay because after 115k
miles my original was worn out. Now I can ride the bike anyway I want -
it's much "stealthier" and doesn't draw the attention of cops.

Gary Bechtold
'94 RS "Tyrohustler II" beta bike
tyrohustler@xxxxxxxxxxxxx


> Date: Tue, 22 Jun 2004 14:07:39 -0700
> From: RD <rexdart@xxxxxxxxxx>
> Subject: test and question
>
> Hello All,
>
> Does anyone have a preference as to exhaust systems for a '94
> R1100RSL? I've heard bunches of brand names, but I'm curious about
> user experiences. I'd like to get rid of the old cat-converter and i'm

> currently doing head maintenance, so this would be the perfect time.
> Recommendations?

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