Sizing pipes for the wastegate's little bullet muffler. In a low-boost application, the wastegate spends a lot of time being open so it might as well sound decent. I could have rerouted it into the main muffler, but I hate how the single turbo systems only have one exhaust tip and I'm not a fan of false tips. Throughout planning I kept joking about making the driver side exhaust cutout into a functional wastegate muffler. Everyone that I shared this with said, "I don't think I've ever seen anyone do that before". As Doc Brown said, "well, I figured... what the hell?"