The one piece looks like one of those boost tubes, don't know what in the world the other thing is supposed to be.
EMPIRE DIESEL, PERFORMANCE TRUCK PRODUCTS, CEN-TEX DIESEL PERFORMANCE, AND DIESEL INNOVATIONS
ALSO LOTS OF HELP FROM (IN NO PARTICULAR ORDER) TWISTED DIESEL PERFORMANCE, FCDP, ITP, MATT WITH GEARHEAD, ERIC WITH INNOVATIVE, DOUG WITH GOGO DIESEL, CASS WITH FULL FORCE DIESEL, AND SWAMP'S
2005 F350 Fat-Butt Truck
2004 ECSB Procharged F250