Upgrade your Peterbilt 389 Glider/Non-DPF with the 7 Inch Diablo Lincoln Exhaust Package. This package includes (2) top stacks, (2) lower elbows, (8) pack of urethane bushings, (4) angled clamps, (2) lower cab brackets, and (2) additional upper cab brackets for day cabs. Choose from top stack style options like miter, flat, curved, and more. Elbow options include 60-degree OEM 379 style bend and 90-degree long leg elbows. The full diameter Y-pipe option upgrades your exhaust package to 90-degree elbows without a 5" reduction and upgrades the Y-pipe to a full 7" diameter. This system eliminates the flex pipe between the elbows. Get free shipping and a 1-year warranty with Lincoln Chrome.