Originally Posted by xpragmaticx
I would guess that the rattle is your CAT or Muffler against their clamps. At every rpm your car has a unique frequency. It's probably just at 2000 rpms that the right frequency is hit to vibrate whatever is loose. I don't know why you would lose horsepower though.
and that as the next person said, the "loss of pweor" is probably just due to shift point
any solutions? i haven't really done anything hands on with the car other than replacing the brake light
h: