Allow me to reply here as a Speed Triple Owner...
/engage soap box/
First of all, I have to establish this first:
Most people seem to sum up a bike's performance by saying "Hey man, it's a 140 hp bike". HP HP HP HP... It's such an incomplete way of measuring performance.
To me you really can't describe performance without torque and time trials also. Let's leave out handling and other characteristics... blah blah blah
The triple is specifically built for gobs of torque! More torque than the 1198 Duc twin until about 8k on the tach. Don't believe me, look it up. HP is a function of rotation speed/distance. Therefore you could have a 45 ft/lbs of torque engine and rev it to 16k and have a killer HP reading! Do you really want to race the piss out of your engine on the street all the time to make good power? How pratical is that power? You could also have a bike with great torque and HP but have slow time trial speeds. Perhaps its a 1000 pound bike then 160 hp will still be a slow bike. Some guys like to say "yeah I got 160 Hp bike, but how often are they ever hit the 13k to actually do it? Less than .5% percent of the total ride time or far far far less. Not to mention how small the window is in the power band to enjoy the 160 hp... review below.
Notice because the triple makes more torque than the rest, it makes significantly more horse power at most of the power band. And that's not just against these bike, a crap ton of "liter" bikes up to 8k. Do I think the Speed triple is faster than most liter bikes... hell no! It's purpose is not for racing but for fun. Its' one goofy wind sail that drags incredibly after 80.
/disengage soap box/
So, what do I recommend?
Get rid of weight and open exhaust up.
I did the 3 to 1 arrow exhaust. Lost 20-30 pounds quick and yield a healthier curve. Arrow come with ECU software that's pretty good. Although some guys don't like because it wasn't loud enough. Guess they need to sound faster? I've never seen a kit to upgrade hotter cam or bigger displacement. There was a fabled turbo floating around but have never seen it installed. There simply are not many performance kits for the bike.