FG pipes are a good all-rounder to what ive read about different pipes, the FG is decent all range (low/mid & high).. think of the FG pipe as Jack of all trades but master of none!. whereas other pipes such as doms & jetpros shine at certain points eg: high end or low end etc depends which you want.
Im thinking of getting an FG pipe to have all round decent power/speed but also because of the mounting which is nice & snug, at present i use the dom torque pipe, great pipe but i hate the way it sticks out the backend & its a nightmare to fasten the header bolts.
in saying this even though my dom is a torque pipe, it seems to kick in mid range then its like hell has been let loose! like i say great pipe, but now i want summit more compact that gives all round decent performance instead of a certain range