So, first off, the install video for this product was SUPER helpful. 2ndly, it doesn't quite show just how loud this thing is. At idle it's doable, but anywhere past that, its LOUD. Still, great product, fit and finish are great. Kinda wish the O2 sensor plug was black, but oh well. The pipe slips right on into place, and there is zero difficulty mating the stock muffler to it. With that in mind, mounting any other slip on that works with the stock cat should fit this just fine. Bike is a 2018 R1. Supplemented with a flash tune (STG Video available).
As always, the buying experience with STG is phenominal. Fast shipping, and competitive pricing. 5 stars all around!