tuning with udder only exhaust

[mxwinky]

It was my understanding that US-spec bikes didn't have the actual catalyst in the udder, but the Euro-spec bikes did, at least through '06.  I'm betting your '06 udder is just a diffuser for sound deadening and/or backpressure.  You'll still be running a shorter tuned length to the exhaust system so you'll be giving up something besides the weight of the silencers.  I think to get it running right you'll be headed to something along the lines of a PCIII and a custom map.  It doesn't sound like a real money saver to me, but it's your party so you get to choose the keg.  Drink up and go crazy on that exhaust!

[herm]

lots of good advice from folks with a wide variety of experience here.

all i can give you is some advice based on experience with this same mod.
as i already mentioned, i ran mine without for almost 4k. no issues, no loss of power, nothing wrong.
didnt run lean, or rich. had the dealer check it out after several hundred miles.
didnt need a remap, tune, or anything else.
the only reason i changed my pipes from the udder only to the X-box was that it was too loud, and i did not want to go back to the stock set up.

dont spend money if you dont have to/ want to.
it sounds like your not looking for more power, so start off slow. see how it runs with just the udder. 
dont get rid of the pipes, punch holes in the air box, and go looking for a PCIII, remap, whatever right away. so many changes all at once is a sure way to bung something up, and you will have a hard time determining which one of those changes was the cause of any problem you end up with.

as always YRMV.
every bike is different. your s2r800 is different than my s2r1000. for that matter, my bike is apparently different than most other s2r1000 in that it runs great, and always has.

cheers!

herm

[jmoth79]

all i can give you is some advice based on experience with this same mod.
as i already mentioned, i ran mine without for almost 4k. no issues, no loss of power, nothing wrong.
didnt run lean, or rich. had the dealer check it out after several hundred miles.
didnt need a remap, tune, or anything else.

same here.  I've been running w/o the cans or midpipes on my '05 S2R800 with absolutely no issue for over 15k miles.

[ducatiz]

According to Ducati.com, the 05-06 S2R had Euro2 emissions and 07 had Euro3.

I weighed my udder and a friend's udder off his 07 S2r and the difference was 2 lbs

[Airborne]

my plugs after 5000 miles of udder only