before you spend your money remember that what increases HP decreases torque. it is the low end torque that gives you the perception of speed with accelleration. If you decrease the resistance to airflow and change the intake length and volume you may detrimentally decrease real world performance and perceived performance. The numbers that are given on dyno testing are derived at WOT and most of us do not drive that way. I had a conversation with Steve Dinan while riding in one of his cars. I was ready to drop 1-2 K on mods giving me 28 HP when asked if that would give me a perceptable change in accelertion his answer was no.