After a couple of hundred bucks, a few cuts and bruises and liberal use of the 'f' word I've finally completed the stage 1 tune on my Dyna! Performance difference is a revelation, throttle response so much crisper. Any you guys have an approximate idea of increase in bhp using the following parts on a 2009 dyna? V&H Drak air cleaner V&H HS slip ons V&H Fuelpak Cheers 

Cheers lads
Certainly feels more than 10 bhp but wouldn't
be surprised if that's all it's given.