I JUS GOT BACK FROM LETTING PEP BOYS INSTALL MY CAI,THE FIRST COUPLE TIMES I STARTED IT IT MADE A CLINK NOISE AND I CAN FEEL IT ?? AND WHEN MY FOOTS ON THE GAS IT WHISTLES...I HAVE AN APPOINTMENT FOR THEM TO INSTALL MY CAT BAK FLOWMASTERS ANYONE THINK THEY MESSED ANYTHING UP? I KNOW ITS PRETTY SIMPLE TO INSTALL A CAI BUT UPR SUGGESTED I HAVE A PROFESSIONAL DO IT SINCE ITS ALL MESSIN WITH THE COMPUTER N ALL AND I AINT NO DANG PRO IM A NEWBIE AT ALL THIS SO SOME ONE GIVE ME SUM ADVICE PLEASE....MY CAR RAN GREAT FOR A 97' WITH OVER 100K