Best performance mods?

[TINK_imp]

Unfortunately the CB1100 will never be a real power house bike. The fundamental design of the engine does not lend its self to big power gains.
I came from a 2004 Suzuki Bandit 1200/S which had something over 100hp and accelerated like a bat out of he*l.
While the Suzuki Bandit can't match the CB1100 in the classic looks department; if I you're looking for brute horsepower you're not going to find it in your CB1100.

Having said that; I did put a Power Commander V on my CB1100 which help with driveability, but I can't say it added any real world horsepower.