turbos, it takes a lot more money to start and to keep up with a turbo then a supercharger. i am only gonna be running 6-8 psi. never above that. turbo = full piping, intercooler, all types of valves and what not, a supercharger requires just that, a supercharger, thats it.

Price of s JRSC =$1,900 w/ 100K mile warranty
Greddy t03/04 = $3-4K and the end of everything and if you try and boost too much, there go your internals.

for a stock engine, a jrsc is definately the way to go.