Put the stock cats back on today to get it smogged and holy shit do test pipes make a difference. I lost a ton of power throughout the rpm range. Especially low end. Takes forever for boost to build. Feels like the car is being suffocated. The car is a lot quieter too. Test pipes are going right back on after it get smogged. This is my first tt and just didn't expect them to make that big of a difference in power.
