The MBRP 191654-180 Stainless Steel 18" Extension Pipe for your 1989-1993 Dodge 5.9L Cummins is required when installed the MBRP S6150409 or S6148409 exhaust systems on an extended cab applications.
- 18" Extension Pipe
- Aluminized Construction
- For Use On Extended Cab Models
Note: Works with the following MBRP Part #'s: S6148409, S6150409