MBRP S6150AL 4 Inch Turbo Back Exhaust

MBRP S6150AL 4 Inch Turbo Back Exhaust for 1988–1993 Cummins

The MBRP S6150AL 4-inch turbo back exhaust is built for 1988–1993 Cummins 5.9L trucks that need better exhaust flow and improved reliability. This system replaces the restrictive factory exhaust and allows the engine to move exhaust gases more efficiently.

As a result, the truck responds better under load and produces a deeper exhaust tone.

Turbo Back System Benefits

This turbo back system replaces everything from the turbo outlet to the tailpipe. Because of that, it removes factory restrictions that limit performance.

In turn, the engine operates more efficiently and maintains better flow during towing or heavy use.

Armor Lite Aluminized Steel Construction

MBRP builds the S6150AL using heavy-gauge aluminized steel. This material offers solid durability while keeping the system affordable.

In addition, it performs well in moderate climates and daily driving conditions.

Single Side Exit Design

This exhaust features a single side exit configuration. That design provides a clean look while maintaining proper exhaust routing for 4WD trucks.

It also includes a 5-inch outlet tip to complete the system.

Built for Reliability and Fit

The system uses welded hangers to ensure a secure installation. Because of that, the exhaust stays properly aligned and reduces movement over time.

Additionally, the components are designed for a direct fit, which simplifies installation.

Performance and Sound Improvements

Upgrading the exhaust system improves both sound and efficiency.

You can expect:

• Reduced exhaust restriction
• Stronger throttle response
• Deeper and more aggressive tone

Installation Notes

This system installs using factory mounting points with no major modifications required.

However, it is designed for 4WD trucks only. Always confirm fitment before installation.

Warranty Coverage

MBRP backs the Armor Lite series with a 3-year warranty on aluminized steel systems. This covers defects in materials and workmanship under normal use.

Fitment

• 1988–1993 Dodge Ram Cummins 5.9L
• 4WD trucks only

Related Parts (Same Platform)

Browse more Cummins upgrades:
https://reviewdiesel.com/product-category/5-9l-cummins/

Built to Improve Flow and Function

Factory exhaust systems restrict airflow and limit performance. The MBRP S6150AL solves that problem by improving flow, sound, and overall efficiency for your Cummins.