All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. Includes factory connect leads, X-pipe, resonator, tailpipes and dual chambered mufflers with quad 3.5" dia. slash cut double wall conical polished tips - two per side. This Factory Connection exhaust system bolts directly to the OEM 2 bolt flanges. This system can be upgraded later by discarding the lead pipes and pairing with a Stainless Works header kit (P/Ns PG8HCAT, PG8HCATST, PG8HOR, PG8HORST).