Tervetuloa Johnny,
Mars->October guess you live in southern Finland.
I'll try to answer some of the Qs.
1. For Mistrals try Duilio Agostini,
nice guys, english is OK.
2&3. TLM is another source of most things
for your Guzzi on the net
4. My powercommande cost me 4500 SEK, about 500 euros,
mapping in dynobench will be around 2500 SEK / 270 euro
to get the full value of your performance mods mapping is the way to go,
also you don't want to run lean (= hot) which is always a risk when opening the
air/exhaust flow. There are some map for different configs available on the net
but every engine is a little different so mapping is better.
You also get a fun day at a motor tuner and cool charts to post on the internet.
5. K&N. I use the model RC-1200 which is
a conical filter with no intake runner. Others on the forum prefer another model with
runner and straight form.
6. Dymag no longer make Guzzi wheels, shaft drive was too special for the
small market. Your options are PVM and OZ from Brian&Ghezzi AFAIK.
7 Yes, do it, it is simple. The idle should be at a litte over 1000 rpm.