Exhaust› Exhaust Pipes, Systems and Components

Flo-Pro

4-Inch Downpipe-Back Exhaust System

$680.00

SKU: 878NM

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Flo-Pro 878NM is a 4-inch downpipe-back exhaust system designed for the 2016-2019 Nissan Titan with the 5.0L Cummins engine. This system replaces the factory exhaust from the downpipe back with a mandrel-bent pipe. It does not include a muffler and is intended for track use.
Show original supplier description
The Flo-Pro 878NM is a 4-inch downpipe-back exhaust system engineered for the 2016-2019 Nissan Titan equipped with the 5.0L Cummins engine. This race exhaust system replaces your restrictive OE exhaust from the downpipe back with a 4-inch mandrel-bent system, designed to improve torque, mileage, and throttle response. The system features a single side exit and mounts to OE hangers for an easier installation. It is available in either Aluminized Steel or Stainless Steel. This Flo-Pro exhaust system does not include a muffler, making it suitable for track-driven applications. Modifications may be required for trucks with suspension lifts or other variations from stock.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFlo-Pro
Part Number878NM
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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