Is this the heat soak everyone talks about? In NYC at times it takes 45 min to move 5 miles. Every time im stuck in traffic or the car is reving no more than 2k rpm, when i find some open road it wont go into boost. It jerks a bit and when i get off throttle a loud pop comes out the exhaust. One time i kept pushing it and got a CEL. Vag com said banks 1 and 2 are running lean. What could this be? If i turn it off for a little bit, maybe 10 min shes back full power. Im thinking shes getting hot so i get onto the highway for some fresh air and all seems well. Its a 03 2.7T MT with some work done: k04s (running k03 stage 1 tune at the moment), piggies, cat back, upgraded fuel pump. I even wrapped the downpipes and made sure the header and turbo shield was back in place to keep underhood temps down.