Basic mods that increase hp/torque would be an intake such as the Vararam, Breathless Performance Products Vortex Rammer and headers such as FLP or TPIS, etc. You might get a few ponies from a catback exhaust. B&B PRT's, and Borla Stingers are popular. PCM tuning on a dyno with a wideband O2 sensor is very useful as well to get the correct air-fuel ratios as some of these mods tend to make it run rich at WOT.
But if you want real neck snapping power you will probably need more than bolt-ons, eg: heads & cam, supercharger or turbo/s. Of course you also need headers, intake and a catback exhaust to get the most out of those mods. In addition, PCM tuning is almost a necessity.
More than that and you're looking at more cubic inches.
Oh, and welcome to the forum.
