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SKU: S6150P / UPC: 882963117687
MBRP 4-Inch Turbo-Back Exhaust System for 1988-1993 Dodge Ram 2500/3500 Cummins 5.9L Diesel 4WD
The MBRP turbo-back exhaust system is a complete 4-inch single side exit setup replaces the restrictive factory exhaust from the turbo outlet all the way back, delivering noticeable gains in horsepower, torque, and overall drivability that put it ahead of stock configurations and competing aftermarket options. Drivers report up to 18 additional horsepower and 28 ft/lbs more torque, along with reduced exhaust gas temperatures (EGTs) for safer towing and hauling, quicker throttle response, and improved fuel efficiency during daily use or heavy loads.
The aluminized steel construction resists corrosion better than untreated mild steel alternatives, ensuring long-term reliability in demanding conditions without the higher cost of full stainless systems.
Precise Vehicle Fitment
Designed exclusively for:
- Years: 1988, 1989, 1990, 1991, 1992, 1993
- Make: Dodge
- Models: Ram 2500 (D250/W250), Ram 3500 (D350/W350)
- Engine: 5.9L Cummins inline-6 diesel (12-valve)
- Drivetrain: 4WD only (does not fit 2WD models)
- Cab Configurations: Fits regular cab short bed, regular cab long bed (includes mid pipe for long bed), and extended cab setups
- Transmission Compatibility: Automatic or manual; no modifications needed for stock setups
This direct bolt-on system aligns perfectly with OEM mounting points, avoiding clearance issues with the frame, driveshaft, fuel lines, or suspension components common in universal exhaust kits.
Complete Kit Contents
Every MBRP S6150P purchase includes all necessary components for a full turbo-back installation, with no additional parts required beyond basic hand tools:
- Down Pipe: 3.5-inch diameter mandrel-bent section connecting directly to the turbo outlet for smoother flow
- Front Pipe: 4-inch extension from down pipe to mid-section
- Extension Pipe: Adjustable 4-inch section for precise alignment
- Mid Pipe: Included for regular cab long box models to bridge longer wheelbases
- Muffler: Performance straight-through design for balanced street-legal tone without excessive drone
- Over Axle Pipe: 4-inch bent section routing over the rear axle
- Tail Pipe: Two-piece 4-inch assembly for easy single side exit positioning (driver or passenger side configurable based on preference)
- 3.5-Inch Band Clamps (2): For secure turbo and down pipe connections
- 4-Inch Band Clamps (multiple): For all slip-fit joints, torqued to 45 ft-lbs for leak-free seals
- 4-Inch Hang Tight Hanger: Universal rubber-isolated hanger for mid-section support
- Hanger Assembly Kit: Includes 3/8-inch bolt, lock washer, nut, and 7/16-inch fender washer for over-axle support
Part number for the full kit: S6150P (UPC: 882963117687). All pipes feature fully sealed seams to prevent rust buildup at welds, a common failure point in lower-quality systems.
Key Specifications and Build Details
- Material: 16-gauge heavy-duty aluminized steel for durability and heat resistance
- Pipe Diameter: 4 inches throughout (3.5 inches at turbo down pipe)
- Finish: Black powder coat option available raw aluminized for custom coating
- Sound Profile: Street series with muffler for a deep, aggressive rumble under acceleration while maintaining cabin comfort on highways
- Warranty: 1-year limited coverage against manufacturing defects
- Installation: Bolt-on design takes 1.5-2 hours no cutting, welding, or fabrication needed. Follow the included instructions to trim pipes if required for your exact cab/bed length, ensuring 3-inch overlaps at joints
- Weight: 79 pounds total system weight
Emissions Note: Not CARB-certified check local regulations for off-road or racing use
This MBRP S6150P setup provides the power and sound enhancements your Cummins deserves at a straightforward price, making it the direct path to better performance without unnecessary complexity or expense. Order now to experience the difference in your Dodge Ram's response on the road or trail.
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