Universal 304 SS Round Non-Resonated Angle Cut Double-Wall Exhaust Tip (ST40013D12) by Flo-Pro®. Tip Shape: Round. Tip Cut Type: Angle Cut. Tip Inlet Diameter: 4". Tip Outlet Diameter: 5". Tip Length: 12". Tip Attachment Style: Weld-On. Designed with meticulous attention to the smallest detail this premium product will meet your needs and expectations. This FLO-PRO product is manufactured from top-grade materials to provide maximum durability and ensure long lasting service life.