Hi, my name is Roman and I'm from Moscow) Here are a few of my modifications:
1) termignoni exhaust with Moto Morini with alteration, Termignoni for GT1000 I don't like in principle, neither the angle of elevation nor the shape.
2) K&N filter and airbox modification.
3) ECU firmware on full termignoni via TuneECU. I didn't like the rest of the firmware. I drove each one.
4) A star with 14 teeth.
5) Halcyon mirrors.
6) Tail.
The motorcycle began to go perfectly! Powerful and fast.
Now I have started the most important thing: suspension and brakes.
By suspension: Ohlins from sport classic rear shock absorbers, front springs and 13w oil.
I absolutely did not have enough regular brakes, so I almost already installed the Brembo gold 4 from MC4R with a radial car from 999. All this requires painstaking milling and manufacturing of spacers for brake discs. If you are interested, I can post a photo and a description of the process.