Exhaust
MBRP 4″ Turbo Back, Single Side (4WD only), P (S6150P) for 1988-1993 Cummins 5.9L
Designed for maximum performance and value, the MBRP Armor Lite Series is built from 100% aluminized steel at a budget-friendly price. Featuring a two-piece tailpipe and bolt-on hangers, it delivers the same fit, sound, and performance as higher-end systems without the added cost.
MBRP 4″ Turbo Back, Single Side Exit (4WD only) (S6150AL) for 1988-1993 Cummins 5.9L
The MBRP Armor Lite Series exhaust is built from 16-gauge aluminized steel for durability and value. Featuring welded hangers, improved flow, and a 5″ tip, it offers reliable performance with a 3-year warranty for moderate driving conditions.
MBRP 4″ Turbo Back, Single Side Exit (2WD only) (S6148AL) for 1989-1993 Cummins 5.9L
Made of 100% heavy gauge aluminized steel our Armor Lite Series is designed to provide the cost conscious consumer with the same high quality design and craftsmanship as our other systems, but at a value price. Armor Lite is suitable for areas with moderate environmental conditions.
MBRP 4″ Turbo Back, Single Side Exit (4WD only), T409 (S6150409) for 1988-1993 Cummins 5.9L
The MBRP Exhaust S6150409 is a 4 inch turbo back system for 1988-1993 5.9 Cummins trucks. Built from T409 stainless steel, it offers durability and corrosion resistance. This system includes a 5 inch tip and welded hangers for installation. Designed as part of the Armor Plus series, it provides a reliable stainless steel upgrade.
MBRP 4″ Turbo Back, Single Side (4WD only), no Muffler, AL (S6150PLM) for 1988-1993 Cummins 5.9L (excluding EC/LB)
The MBRP Exhaust S6150PLM is a 4 inch turbo back system for 1988-1993 5.9 Cummins trucks. It features a muffler delete design for a more aggressive sound. Built from aluminized steel, it offers durability for daily use. This system includes a single side exit and two-piece tailpipe configuration.
BD Diesel 60lbs Valve Spring Kit (1030060) for 1988-1998 Cummins 12-Valve 5.9L
The BD Valve Spring Kit 1030060 fits 1988–1998 Cummins 12-valve 5.9L engines. It uses 60 lb springs to improve valve control, reduce float, and support higher boost and RPM.
