APR's premium flex sections are now available! Perfect for the do-it-yourself enthusiast fabricating a custom exhaust system, these flex sections are designed to stand the test of time. Internally the flex section is fully sealed with a corrugated interlocking lining that improves flow and reliability. Externally, the flex section features a low profile design with minimal braiding material. This eliminates common issues with other designs that can collapse, billow, rub, rattle, and fray over time. Created from T304 stainless steel, this flex section is designed to stand the test of time.