Car feels sluggish, and have the feeling of no power
Ok I'm going to try and make this short and sweet. I have a 2013 Wrx hatch. My mods are a Cobb SF intake, Cobb downpipe, and a Spt catback system with a protune. A couple of weeks ago I have engine hesitation along with power loss. 2 weeks ago my car started to stall out. I would die just randomly driving. So i cleaned th MAF sensor, blew out the air filter, and did some wipe down on the throttle body. After I did all that the car ran perfectly. I had all my power back, and it felt amazing. Now Its winter here in Wisconsin, and a few days ago my car feels like crap. Could it be from the cold weather? I'm not really sure of that, but I'm not sure whats going on. Could my MAF be bad? Fuel pump? Current symptons are I have to give it more gas than usual and car feels sluggish. Was on the freeway coming home from work and was in 5th gear accelerating, and felt like I was going no where. I don't think my clutch is slipping. So I dropped it into 4th with WOT, and I can hear the turbo spool up, but again felt like the car fell flat on its face. At this point Im getting very frustrated. How can the car feel amazing a week ago, and now feels like all the symtoms from my previous situation come back? Does my car not like the cold? Do I have a bad sensor somewhere? I dont know at this point. Im pulling my hair out trying to think of why its like this. Any help would be greatly appreciated! Thanks in advance.