Vibration as i am driving

Repair your vehicle right away. Just click on the link I attached 2001 2003 Mitsubishi Lancer Evolution 7 EVO VII Service Repair Workshop...

contaminated fuel, fuel filter clogged, injector ports caked.

possible cat converter

If it has high mileage on it probably is the catalytic converter is stopped up. A dead give away is losing power going up hills and not shifting like it used to. A easy test is to put your hand over the exhaust pipe wear a glove as it may be hot. Then have a friend give it gas if it is stopped up you will be able to hold the exhaust from coming out. That is just a simple test but more then likely it is stopped up . You can get a after market cat for about half the price of a new one . Good luck.

the very first thing you should do is have your fuel pressure checked. sounds like fuel filter or fuel pump.

mass air flow sensor its in the air intake pipe

All vehicles will lose a certain amount of power when going up hill or towing depending on how steep the hill or how heavy the load. Do you shift down when needed.

yes i could be slipping.try manually shifting down going up hill.

sound like clutch contaminated with oil .you going up a steep hill your rear main seal probably leaking some .causing clutch to slip.

How slight was the hill and how much weight did you have in your car? When you got power back was it because you were no longer on the hill or were you going downhill?
You may just need to drop down a gear to get the power back, if you have a heavy car even slight hills can cause it to lose power especially if your in top gear. You have a "sports transmission" option (I'm pretty sure it's on all the DSG transmissions) you just need to move it across to the +/- bit and move the stick to the - to go down a gear. Otherwise you'd have to wait until your auto decides it's lost enough revs to go down a gear. Which is why I hate autos.
Otherwise it could be bad fuel or something wrong with the turbo.