My bikes setup is pretty much all you can do externally, ie secondary's removed, 3 K&N's, tuneboy, gi pro atre (even though with tuneboy there is no difference except a gear indicator), staintune with collector and I get 142 rwhp so with headers I would like to think I would clear the 150hp. Still watching with anticipation. If the setup goes comfortably onto a classic and gives noticeable hp think it is a very possible option for me, fingers crossed. I am so happy that my missus is buying her bits and pieces on Ebay as my payback of a possible new exhaust then won't be a shock to her, well thats my theory