Yeah its true, if ya want to go faster then basically use the standard airbox and use a performance panel filter. Unfortunately though you wont have any induction noise
unless you make a bloody good heatshield for your existing piperX and a totally Awlsome cold air feed your only gunna loose power with your standard set up
If you want the ultimate in performance induction then get a Viper, but i would spend your money else where on something like a chip
Jim