Product Description
Unlock classic first-gen Cummins sound and better spool with the MBRP S6150AL 4" turbo-back, single side-exit system. Built from Armor Lite aluminized steel with mandrel bends, this kit delivers clean tone on the highway and authoritative bark under throttle—while staying a straightforward bolt-on that uses factory-style hangers.
- 4" mandrel-bent turbo-back system, single side exit
- Armor Lite aluminized steel construction
- Street Profile sound—strong when you’re in it, mellow on cruise
- Direct-fit for 4WD first-gen 5.9L Cummins
- Backed by MBRP’s 3-Year warranty
Fitment
Years: 1988–1993 • Make/Model: Dodge Ram D250/D350 • Engine: 5.9L Cummins (12-Valve) • Drivetrain: 4WD only • Configuration: Turbo-back, single side exit.
Notes: 2WD trucks use a different kit. If you need stainless steel or a budget Performance Series alternative, see the MBRP cross-references below.
What’s Included
- 3.5" turbo downpipe, intermediate pipes, 4" muffler, tailpipe, tip (per series), and clamps
- All required hardware and installation instructions
Cross-Reference / Alternatives (MBRP only)
- MBRP S6150409 — 4" Turbo-Back, T409 Stainless, 4WD (1988–1993)
- MBRP S6150P — 4" Turbo-Back, Performance Series (aluminized), 4WD (1988–1993)
- MBRP S6150PLM — 4" Turbo-Back, PLM (no muffler), 4WD (1988–1993)
- MBRP S6148AL — 4" Turbo-Back, 2WD (1989–1993)
Why Buy from CPP Diesel
- 1st-Gen specialists with real fitment support
- Fast shipping from U.S. warehouses
- Clear options across MBRP series and materials
No. S6150AL is for 4WD trucks only. For 2WD applications, use MBRP S6148AL.
What’s the difference between Armor Lite, Performance Series, and T409?
Armor Lite (like S6150AL) uses aluminized steel for value and durability. Performance Series (S6150P) is a budget-focused aluminized kit with a different muffler spec. T409 stainless (S6150409) resists corrosion better for long-term use.
Is a tip included?
MBRP turbo-back kits include a single wall, rolled-angle tip as specified by series. See the stainless S6150409 page for T409 details, or contact CPP if you need a different tip style.
Do I need welding?
No. This system is designed as a bolt-on install using OEM-style hangers and supplied clamps.
