BAK 21-24 Ford F-150 6.5ft Bed Revolver X4ts T-Slot RAILS ONLY - NO COVER 1986-nissan-d21-e-esi8825616 Also included is an X-pipe

Also included is an X-pipe balance tube which equalizes and evenly distributes exhaust pulses for increased flow and minimizing exhaust drone

When installed on cataloged applications

V6 159-171 1972-79 Cam Bearings

1-piece flanges prevent warpage to ensure a leak-free seal over the life of the vehicle

A pre-installed oil level sight glass allows quick and easy oil inspection

BAK 21-24 Ford F-150 6.5ft Bed Revolver X4ts T-Slot RAILS ONLY - NO COVER 1986-nissan-d21-e-esi8825616 Also included is an X-pipeReplacement BAK Side Rail Assemblies. This component is sold as a set of two only. Contains fully assembled set of rails. This Component Is Sold As A Set Of Two Only Contains Fully Assembled Set Of Rails Replacement BAK Side Rail Assemblies