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M1100Evo intermediate DB killers?

Started by koko64, August 28, 2019, 07:17:05 AM

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koko64

The Termis on my Evo are loud, awesome but loud. I fitted the olomogato DB killers and although it sounds good maybe lacking some bass note. Are there intermediate inserts available?
2015 Scrambler 800

Speeddog

I've never seen any 'intermediates'.

Perhaps there are other/generic brands that will fit?

I'd drill another hole, see how it sounds.
Or enlarge the existing hole(s).
Rinse and repeat til it sounds right.
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stopintime

It's 3-4-5 db louder than most other Monsters and the sound is less bass, quite a lot sharper. Not nearly as Ducati as a 2v 'should' be. IMO. Strange, since the ehaut cans volume should be large enough. Maybe it's the oversized(?) pipes....

Repack the cans with less 'wool'?

DesmoWorld has several versions of db-killers. Including 'legal look'  8)
252,000 km/seventeen years - loving it

ducpainter

Quote from: Speeddog on August 28, 2019, 08:33:59 AM
<snip>
I'd drill another hole, see how it sounds.
Or enlarge the existing hole(s).
Rinse and repeat til it sounds right.
^^^^^^^^^^^^^^^^^^^

This.
"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”



Charlie98

When I got my Arrows, the factory DB's were atrocious.  Yes, they killed those pesky DB's, but they actually killed some of the sound I really wanted... but pulling the DB's went entirely the other direction.

I modified my DB's by punching a bunch of holes in them...



...and what I found is... all those holes did very little to open them up.  It surprised me, too.  What I wound up doing... what worked and struck that nebulous middle ground... was just cutting the DB off about 2" above the insert... THAT opened them up enough where I could notice both a performance increase, and some nice exhaust note... without being full-on obnoxious.

The factory DB before modification.  (The photo above is after I cut the tails off...)

Dennis

2013 M796 ABS
1993 XR650L (the Torque-a-Saurus)

Wherever you go, there you are...

koko64

2015 Scrambler 800

Charlie98

I realized I never took follow up photos... so here's what I have as a finished product...



Dennis

2013 M796 ABS
1993 XR650L (the Torque-a-Saurus)

Wherever you go, there you are...

koko64

2015 Scrambler 800


ducpainter

You could likely get similar results by drilling a hole in the end cap.
"Once you accept that a child on the autistic spectrum experiences the world in
a completely different way than you, you will be open to understand how that
 perspective
    is even more amazing than yours."
    To realize the value of nine  months:
    Ask a mother who gave birth to a stillborn.
"Don't piss off old people The older we get, the less 'Life in Prison' is a deterrent.”



koko64

Maybe a mate to turn some up with a radiused throat for flow.
2015 Scrambler 800

koko64

#11
Quote from: koko64 on August 28, 2019, 03:08:56 PM
https://www.desmoworld.com/desmoworld-db-eater-legal-look-for-termi-1-stueck-for-race-use-only-58

I forked out for these as I want to keep the oem inserts intact.

I tested the totally unrestricted Termi pipes and bloody hell they were obnoxiously loud with a raspy note. Ill leave the stock restrictors in place until these intermediate ones arrive. I would have modified the stock restrictors if they werent so expensive to replace. The Desmoworld type should have minimal effect on low rpm power and peak hp appears unaffected by exhaust type from the dyno charts Ive seen. The main factor re peak hp is the intake.
2015 Scrambler 800

Charlie98

Dumb question...  is there a reason you would eventually need the stock DB killers?

In my case, those Arrows will be on my Monster until it goes to the great confab in the sky... or until I sell it, which ever comes first.  I still have the factory cans... if the buyer wants heavy, quiet pipes...
Dennis

2013 M796 ABS
1993 XR650L (the Torque-a-Saurus)

Wherever you go, there you are...

koko64

Yes, for reasons I can't share lest they incriminate me ;)
2015 Scrambler 800

koko64

Desmoworld intermediate db killers arrived. They are beautifully cnc machined billet parts with nicely radiused internal exit ports for good flow and performance. They are really high quality parts. I am so impressed.
2015 Scrambler 800