Over the past month or so I have noticed a big power loss. There have been no changes to cause this loss. I have also noticed what seems like a small hesitation when accelerating. I have changed the fuel filter, cleaned the air filter (amsoil), and cleaned the MAF. I do have 2 exhaust leaks. One where the pass side manifold joins with the y-pipe and the other after the first cat connecting to the second cat. I have new donut gaskets for these and will replace them tomorrow. Maybe that will fix things. Anyone have any other suggestions as to what could be the problem? Thanks.