an unexpected result

[abby normal]

so, i put the termignoni slip-on kit, with 'performance air filter' and ducati
fueling map on the 848 corse.  the sound it makes is music, but it was LOUD,
so over the weekend i put the supplied 'db killers' in.  funny thing ... in addition
to being quieter, it appears to pull harder in the rev range i mostly use (4k - 8k)
AND its definately running cooler.

perhaps the ducati map is still lean?  and adding some back pressure makes it just
rich enough to run cooler?  and a little back pressure causes the
cylinders to fill more effectively in the mid-range? 

comments or observations welcome.

[Howie]

My guess would be it is tuned with the db killers in.  Either keep the db killers in or remap for open exhaust.

[SpikeC]

 It makes sense that it would be tuned for the dB killers as that is the only way it would be street legal, esp in Europe butt also in US.

[abby normal]

With the modified map, my understanding is that it's sold
As 'off road only'.  No worries.  I can't ride it with the open
Cans ... Way to loud for me.  Just curious if anyone else had a
Similar experience.