Peterbilt 386 388 389 Turbo Down Pipe by Lincoln Chrome Turbo Down Pipe Fits Peterbilt Models With Caterpillar Engine 386 (2006-2016) 388 (2008-2014) 389 (2008 & Newer) 389 Glider (2008 & Newer) Material: Chrome Plated Stainless Steel Inlet: 5" Flanged Outlet: 5" OD Multi-Bend Sold... See More