modding and dressing up bikes is NOT cheap...
is power gain vs dollar spent a value......not usually
it boils down to do you like stock bikes,do they suit your needs?
if not then start emptying those pockets and make the bike your own the way you like it.
rarely can you justify the dollar to horsepower ratio a bargain but if you need to have that to make the bike what you want it to be then its money well spent - it all depends on the person and how bad you have the need for performance and speed
some of us here have even souped-up our vacums,blenders,and lawnmowers
we have it sooo bad-i run a CAI on my john deere lawn tractor for gods sakes
