Grand Rock - Mack Truck Type 1 Muffler - 4" Inlet & 4" Outlet page64_23 OD-OD (straight on both ends)

OD-OD (straight on both ends) or OD-ID (straight on one end and expanded on the other end

Fits All 1996 & Newer Freightliner Columbia

Astatic gives you the dynamic quality communications you deserve

Kenworth T600 T660 T800 Chrome Mirror Assembly are made of top quality

its output section is fundamentally the same as the one utilized in the SR-955 amateur radio

Grand Rock - Mack Truck Type 1 Muffler - 4" Inlet & 4" Outlet page64_23 OD-OD (straight on both ends)Grand Rock Mack Truck Type 1 Muffler 4" Inlet & 4" Outlet Grand Rock Mack Truck Type 1 Muffler 4" Inlet & 4" Outlet Fits Most MACK Truck Makes and Models 4 Inch Inlet ID (inner dimension) 4 Inch Outlet OD (outer dimension) 8. 4 inch round diameter 41 inch length Sold Individually Made in the USA Grand Rock Company is a major manufacturer and warehouse of superior exhaust systems for the aftermarket. Since 1970 Grand Rock has had its sights set on