Well depends on what you want...if you want a Supercharger with a fuel injection system...that TRD one is sooo yummy...but I'd check TRD first for any parts...then for exhausts a lot of companies make them now, Borla, Gibson, Flowmaster, TRD of course....Suspensions it all depends on if you want to lift or lower it...but Fabtech and Rancho all make lift kits....You shouldn't have problems finding what you want for a Tacoma because it is a popular truck and it has built its repuation in the off-road racing world...Probably the best help, especially if your going to go off-roading is to join the Toyota Tacoma Off-Roading Association...there should be a chapter in your area...look it up online....
Keep those trucks flying!!!