Here are the mods I had. K&N cold air,BBK headers,borla exhaust cat back,air foil,descreened maf sensor, 160 thermastat, and hypertech reprogrammer. I was running 13.7-13.5's with those mods and did feel like i had power loss off the line through second, second through third. Now I just put a 3.73 gear and it really feels like power loss in the first three gears. Can anyone tell me what do I need to do or check for so i can fix my power loss. It seems like the car drags when floored

 

Could be the Catalytic converter, bad fuel filter, bad fuel pump...start with the cat, then filter, then pump.

 

I would start with the filter. Its the cheapest. Costs less than 10$ and takes less than 15 min to change.

 

I agree with trying the fuel filter first. You shoulda seen the black crud that poured out of my old one when I took it off.