In all honesty the harsh comments are due to the million other threads on this topic. Iget the full intake tube that's a big help, I upgraded to accel coils and iridium plugs, if you already have a cat back exhaust ia dyno tune or sct flash is your best and final bet. If your pockets are deeper putting on nitrous is an option and for big money and power there have been a few sts remote turbo ls creations out there and the legendary quikls supercharged ls. Those are all of your options, the same as on every vehicle intake, ignition, exhaust, tune, nitrous, forced induction.