Aerodawg
Member
Welcome!! I also have a 2010 fatboy lo, and the 1st major upgrade I did was adding V& H slipons at the 1000 mile mark, and went with what the dealer suggested since my bike is under warranty and I plan on keeping the bike a long time.. They added the Kuryakin tuner, high flo airfilter and did the Dyno test, The bike runs a lot better after the upgrade. Sorry not a techie so dont know all the specifics but once the dyno was done they gave me a printed diagram and showed me where it would be performing better. I trust my dealership as they have been very good to me so far and a year later the bike runs great!