This is a all aluminum 3" piping kit for first gen cummins trucks. It is the driver and passenger side with all of the clamps and adapter boots. Intake horn has a large port plate on the back that can be drilled and tapped for boost reference and injectables. This kit replaces all of the factory 2.5" mild steel piping. It includes all of the hardware. Please message for availability before ordering. These take a lot of work and are hand built start to finish. Thank you for your time!