I put a 103 with heads, cam, 50mm throttle body, sert, air cleaner and 2 into 1 Rienhart. It makes 105 hp and 110 tq. It is plenty fast and a tq monster. It rolls good off low idle to top rpm. I also rode a fatboy with just the standard 103 kit after I bought my 08 Fatboy with the 96. The performance of a standard 103 is great. I loved it and that is why I upgraded. It has better throttle response and it rolls off idle a lot better than stock 96. With that said there is no real reason why I upgraded to a 103. I dont ride in the hills it is pretty flat in Arkansas but I just wanted the extra bump because I am an idiot. I also put in a new clutch because a friend had a beefed up 103 with a stock clutch and it did not last long. This ismy opinion and it is just that an opinion.

 

Lets see a picture of that new Crossbones!