So I have 53,000 miles and I’ve had the car 2 years. I’ve had the resonator and the muffler deleted and piped all the way back. Nothing was done to the cat. It’s the 1.4l turbo so I wasn’t worried about loosing and pressure. It’s been 6 months since and my car now feels horrible taking off and super slow. At high rpm it feels fine. I changed the ignition coils and spark plugs with genuine gm. Cleaned the throttle body and maf sensor. It’s been running like this for a month or 2. Just put a full k&n 69 series on it to gain blow off noise. Started running a little worse after. I reset the ecu so my fuel trims could adjust and it’s still doing it. Hooke a solus snap on scanner to it and I have no codes and no pending codes. And I checked idle and 2500rpm live data. Boost pressure at idle is 14.3 and 15 when revved. Maf is at 5gs idle and 15 at 2500 but when I kick it down hard and let off it’s a 30 for a split second. Map (inhg) is between 13-15 at idle and when I kick it hard it goes to 30 but when I hold at 2500 it drops to 12.3 and when I let off it dips to 5. Not sure what to do now other than take car to a shop and have a diagnosis done. Upset because I can fix most stuff by myself but I don’t know what the problem is. Any help. Also I run 93 premium only and the other day I filled up and i started smelling bleach/hair dye/ chlorine from the exhaust tip. No oil leaks I can see. There’s a couple of exhaust leaks but they are after the last cat probably a foot from the tip where the welds weren’t perfect. Also at idle it sits at 500-700 and it steady then all of a sudden it goes up to 1000 and then drops immediately to 200-300 almost dies and then steady a out again at 750....