Check this link out....custom Turbo SM doubles stock HP.
All done without modifying stock internals...done at Echo Cycle in Edmonton, Alberta Canada. I just happen to be going there on Tuesday June 19, so will check this animal out.

http://www.echocycle.com/mod.php?mod=userpage&menu=30&page_id=184

'06 Speedmaster, Long TORS, rest is stock (for now)