Nissan Cummins 5.0L Downpipe Back Exhaust (2016-2018)

Introduction

Upgrade your 2016–2018 Nissan Titan XD 5.0L Cummins with the FloPro 4" Downpipe-Back Race Exhaust System. Engineered to replace the restrictive factory setup, this high-flow Nissan downpipe back exhaust maximizes torque, throttle response and efficiency while producing a deep, aggressive tone. Whether you’re towing, racing or building a offroad-ready Titan, this Cummins 5L downpipe back exhaust unlocks your truck’s full potential.

Features

• 4-inch downpipe-back design for unrestricted exhaust flow
• Constructed from 16-gauge T409 stainless steel for superior strength
• Mandrel-bent contour piping and prewelded flanges for precision fit
• Includes high-quality clamps for secure, leak-free connections
• No bungs for a clean, high-performance appearance
• Single side exit enhances flow and adds a bold visual finish
• OE-style hangers ensure direct bolt-on fitment
• Ease of installation with preformed bends and all hardware included

Benefits

• Improves horsepower and torque for stronger pulling and acceleration
• Enhances throttle response and overall engine efficiency
• Lowers exhaust gas temperatures (EGTs) for better performance under load
• Amplifies airflow for consistent power delivery
• Delivers a deep, aggressive exhaust note ideal for performance enthusiasts
• Built to withstand high-heat, off-road and towing applications

Compatibility

2016–2018 Nissan Titan XD 5.0L Cummins Diesel

Technical Specifications

• Diameter: 4” mandrel-bent tubing
• Material: 16-gauge aluminized steel or T409 stainless steel
• Configuration: Downpipe-back, single side exit
• Finish: Natural or polished (depending on material)
• Weight: Approx. 61 lbs
• Use: Off-road and competition applications
• Includes: Clamps, contour-bent hangers, flanges and mounting hardware

Installation & Notes

• Bolt-on system—no cutting or welding required
• Reuses factory hanger points for alignment
• Tuning required for proper operation and performance
• Professional installation recommended
• For off-road use only; verify local and federal laws before installation

Frequently Asked Questions

Q1: Is this exhaust legal for street use?
A1: No. It is for off-road and race applications only.

Q2: What material options are available?
A2: Choose between 16-gauge aluminized steel for value or T409 stainless steel for corrosion resistance.

Q3: Does this Nissan Cummins exhaust require tuning?
A3: Yes. Proper aftermarket tuning is required to achieve full performance gains.

Q4: Will this improve towing capability?
A4: Yes. The increased exhaust flow and lower EGTs support stronger, more consistent towing power.

Q5: How difficult is installation?
A5: Installation is straightforward with prewelded bends, OE-style hangers and  clamps for a quick, precise fit.