What did You do. Wipe out 3 wheels? This is not a mechanical problem. Also Please note in the Notice section that all unsubstanciated claims of horsepower must be removed unless you provide Administration with proof.
( As in Your sig since You refuse to tell us how You come up with a 300hp rating on your GXP)
I have a $1100 very custom NOX system, but dont brag about what I really dont know in terms of Real horsepower gain. All I know is it kicks butt. And thats good enuff.