Exhaust Couplings feature an internal Stainless Steel Interlock Liner to facilitate smooth exhaust flow. 

The Interlock Liner also protects the bellows corrugations from elevated exhaust temperatures - all while allowing a degree of flexibility required in high-performance applications. 

They feature a lightweight outer wire mesh that limits bellows expansion as well as provides protection from road debris.

Size: 2.5" Inches Outer DiameterLength: 7" Inches