Product Description
Upgrade your first-gen Cummins with a proven, bolt-on exhaust. The MBRP S6148AL is a 4" turbo-back, single-side exit system from MBRP’s Armor Lite (aluminized steel) line. It’s tuned for an aggressive, clean tone and built for long service life with value-focused materials and clamps included for an easy afternoon install.
Fitment
- 1989–1993 Dodge Ram D250/D350, 2WD only
- 5.9L 12-valve Cummins
- Includes 3.5" turbo downpipe and 5" OD tip
- Excludes extended cab/long bed configurations
What You Get
- 4" aluminized-steel turbo-back exhaust (single side exit)
- 3.5" downpipe, 5" OD tip, clamps, and hardware
- Direct bolt-on installation; no welding required
Why CPP Diesel
- We stock first-gen Cummins exhausts and ship fast from the USA
- Enthusiast support from real diesel techs
- Secure checkout and hassle-free returns
Cross-Reference / Alternatives (MBRP Only)
- Need 4WD? See MBRP S6150AL (4WD, Aluminized)
- Prefer stainless? See MBRP S6150409 (4WD, T409 Stainless)
- Budget no-muffler? See MBRP S6150PLM (4WD, Aluminized, No Muffler)
- Installer Series alternative: MBRP S6150P (4WD, Aluminized)
Helpful Notes
- This S6148AL kit is for 2WD trucks only. If your truck is 4WD, use one of the 4WD part numbers above.
- Tip style may vary by batch; see product images for current configuration.
FAQ
Will this fit a 4WD first-gen?
No. S6148AL is 2WD-specific. For 4WD, use S6150AL (aluminized) or S6150409 (T409 stainless) linked above.
Is a downpipe included?
Yes. The kit includes a 3.5" turbo downpipe along with clamps and hardware.
Do I need to weld anything?
No. This is a direct, bolt-on system designed for typical driveway installs.
What’s the difference between Armor Lite and T409?
Armor Lite is aluminized steel for strong value. T409 stainless (e.g., S6150409) offers increased corrosion resistance.
Will it drone or be too loud?
It’s tuned for a bold, street-friendly sound. For the loudest option, consider PLM no-muffler systems; for more refinement, choose systems with a muffler.
