I know their is a little loss in power, as they go from a 2-3 into a stright 2 style pipe.
Did I notice? Hell no, not even close in a big deal, if I had 125HP, I prob. got 115 now. Just a guess.
But man did it make a big difference in looks, head turns, comments, what I wanted (a harley V-rod that sounds like a harley)
Worth it big time IMHO.
EDIT: My set of pipes came with what I bought, pipes (w/ custom cut I designed myself in photoshop at no extra cost.) baffels, mounting hardware, heat shields, power comander, and a free CD with map maps for all of their pipes, IE I have all the maps for each style of Toxic pipes, with 2-3 ver. for each pipe. So I could get as close as possible before Dyno. Very cool IMHO.
I also think/feel that the pipe cool off faster than the stock V-rod pipes. And aren't as hot when ridding around town, even less on highway. The stock pipes would take more than 2 hours to cool off after riding, mine (V-lux) cool off in about 30-40 min. at which point I can full hand grab them. That has to be a plus.
