ok kasey just cause youre jealous of the intake doesnt mean you can call it names...
and as for other free mods...hmmm...go to the local auto parts store and get a 180 t-stat and drill a couple small holes around the edge (but not through the seal)...not exactly free, but a thermostat is only like $5. ummmm lets see...weight reduction is free...
theres not really any other free mods.