Exhaust would be my first choice. I did it after the appearance stuff and I wish I woudl have done it first.

 

Well after talkn with the arata guys well they confirmed that Their pipes will ad 10hp with just a slip on and power commander plus they are ganna send me a free mapping so its what i will do. yes I will get 10 hp at the rear with this pipe they said and sent me the graphs to show the test vs yoshi, and akra

 

i have a sticker that will add 10 hp to your bike. i have a graph too of before and after. let me know if you want to buy it.