Precision Laser Cut, Custom American Made Stainless Steel Oval Flanges. A quick and easy solution to all oval interconnects in your oval exhaust system. With flanges specifically made to fit our custom oval tubing, these flanges are 3/8" thick, and will take the heat from any performance oval system. Maintaining a low profile allows these flanges to be the perfect solution for your low ground clearance applications, while still allowing a quick disconnect in the system.