Third catalytic converter replaced with a test pipe Dual straight-through mufflers for unrestricted flow after the Y-pipe Manufactured from 100% stainless steel with silver polished finish. T-304 stainless steel will never rust and provides the ultimate durability CNC machine mandrel-bent 2.5" stainless steel tubing for maximum exhaust flow. Single 2.5" piping splits into dual 2.5" pipes with a smooth Y-pipe joint Robotic TIG welded. Features 4.5" slash cut exhaust tips. Inner canister consists of steel wool and white fiberglass which provides lasting lifetime performance and consistent sound. 25% lighter than stock OEM exhaust system