I have just installed the titanium to 380mm carbon single sided TiForce on my 08' and got a pipercross filter and a map from gpw It doesn't feel like the same bike the loss in weight alone is tremendous and the torque and power improvement is very noticable. It is one of the best sounding systems I have ever heard on a bike I am extremely pleased, and I haven't even done any tweaking of the map on a dyno to make it custom to my bike Greg sent me a great map(Kudos to GPW)
. You will not be disappointed in any way except for a lighter rear pocket but that too will be a loss of weight only making you faster
I would definitely go the extra step and put a programmer on if I had already spent the money on the TiForce, I promise you will love it.
P.S. I have only received compliments on how good and clean it looks.