As you see the PIPE question is very controversial, and always will be. All depends on where you want your power, what kind of mods you have done or are planning to do, etc, etc, etc...
my Blaster came with the FMF fatty/powercore 2 setup, GREAT trail pipe, all the attributes described above, etc. After my mod list got longer I switched out to a TOOMEY B1 full kit, what a GREAT all around pipe, to say the least, tons of usable power everywhere.
As requested just read the pipe thread, do your research, there is plenty to read up on, especially here at our Forum.