Walker 41726 Pipe Adapter Offered in a variety of styles and sizes for your installation needs, Manufactured from aluminized steel for durability Ideal for weld or clamp installations, Burr-free construction for proper fitment Walker supplies all of the accessories you need to do the complete exhaust job Part Class: C, Inlet Diameter: 3.000", Inlet Dia. Designation: Inside Diameter, Outlet size: 2.500", Outlet Dia. Designation: Inside Diameter, Length: 6.000", Adapter Type	ID - ID