I HAVE A REVO 3.3 WITH THE VANTAGE CF PIPE..I BOUGHT THIS FROM A FRIEND HOW KNOW NOTHING ABOUT RC CAR...SO HERES MY PROBLEM I HAVE HEARD THIS IS A TUNABLE PIPE ....HOW DO YOU DO IT?????? AND SHOULD I INVEST IN SOMETHING ELSE??? IF SO WHAT??? IM NEWER TO ALL OF THIS MYSELF...THANX ALOT