Vibrant SS Turbo FLEX Coupling with Interlock Liner 1.75in inlet/outlet x 4in long

This Vibrant TurboFlex coupling comes with a 304 stainless steel interlock liner, designed to help exhaust gases flow smoothly. It's 1.75 inches on both the inlet and outlet and is 4 inches long. This type of flexible coupling is often used in high-performance, forced induction setups.

The internal interlock liner is a key feature here. It helps keep exhaust gases flowing freely while also protecting the flexible bellows from the direct heat of the exhaust. This can help prevent premature cracking in components like manifolds and downpipes by absorbing engine vibration and relieving stress on the exhaust system. It's a well-built part made from T304 stainless steel, intended to help extend the life of other exhaust components.