Skunk2 Test Pipes thrive in adverse conditions to give improved engine performance and increased horsepower. These pipes achieve this by significantly reducing exhaust flow restriction. The Skunk2 Test Pipes are made from mandrel-bent aircraft quality 304 stainless steel and are also precision TIG welded. These pipes also feature a sensor bung, heavy-duty flanges, Skunk2 Racing acidetched stainless steel badge, mounting hardware and bung plug to deliver a quality product at highly competitive prices.