So finally got around to getting the downpipe installed and flash to stage 2. I went to Axis Motorsport in Orlando to get my tires rotated, 5k oil change, and downpipe installed. The downpipe went on without any problems. I did buy a better V-Clamp since the one that came with the pipe was already bent. After the install drove 40 miles north to Performance Race Solutions to have the ECU re-flashed to APR's stage 2 software. The CEL never came on but then again I didn't give it much time for it to kick on.
My first impression after the flash was disappointing as I could not tell much of a difference. It maybe because it was so hot out and my car was reading 96 degrees for the air temp. However, once I went on the highway I felt that bad boy fly up to 120 mph like it was nothing.
I have had it on for about 2 weeks now and love it. No leaks or any issues with the downpipe. I do see how some people feel you lose low end torque with this upgrade but it definitely makes ground during mid and high end. My wheels spin like crazy taking off from a dig.
Since my downpipe is catless and no resonator I was a little concerned about the sound. Under normal driving conditions, there is a slight increase in sound inside the cabin but nothing annoying. Under full throttle, its loud but does not sound ricey. I thought I would hate the DSG farts but they don't bother me at all.
So overall if you do not mind some extra noise and your state does not perform inspections I recommend buying the Ebay downpipes and purchasing the ATP V-Clamp. Total cost for the items was $185.