• Dieselr Aluminized Downpipe Back Single | GM 2500/3500 6.6L DURAMAX L5P 2017-2019 Aluminized Race Pipe Dieselr Parts 4-inch Exhaust with Muffler
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  • Aluminized

Dieselr Aluminized Downpipe Back Exhaust Single | GM 2500/3500 6.6L DURAMAX L5P 2017-2019

Dieselr Aluminized Downpipe Back Exhaust Single | GM 2500/3500 6.6L DURAMAX L5P 2017-2019

Dieselr Parts

SKU: 256-120134

$813.00 USD
$870.00 USD $813.00 USD Sale
Shipping calculated at checkout.
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Quick Specs

Material American aluminized steel 🇺🇸
Tubing 16-gauge, mandrel-bent in Canada 🇨🇦
Hangers Contour-bent, OE locations
Clamps Perfect Fit Lap Joint Exhaust Band clamps
Fitment Direct bolt-on; no cutting required

Vehicle Fitment

Make
6.6L L5P GM Duramax
Year(s)
2017-2019
Product type
Aluminized Exhaust

The Dieselr Aluminized Downpipe Back Exhaust (2017–2019) delivers the ideal balance of flow efficiency, fitment precision, and long-term durability. Crafted from 4-inch, 5-inch heavy-gauge aluminized steel, this system provides a direct, unrestricted exhaust path that supports cooler running temps and consistent performance.

Each Dieselr system is mandrel-bent for smooth, uninterrupted airflow and precision-welded for a secure, leak-free design. The aluminized finish offers reliable corrosion resistance, even under exposure to road salt, mud, and moisture. Installation is straightforward, with factory-style hangers and clamping points that ensure a professional, rattle-free fit.

Designed to handle demanding applications and extended use, Dieselr aluminized systems define performance through real-world engineering—built tough, built right, and built to last.

Key Features

  • 4",5" aluminized steel construction for maximum strength

  • Mandrel-bent tubing for smooth, consistent flow

  • Factory-style alignment for clean installation

  • Corrosion-resistant coating for extended durability

FAQs

Aluminized vs. stainless — which should I choose?
Aluminized offers excellent value and everyday durability; stainless maximizes corrosion resistance in harsh climates. Sound and flow are comparable in like-for-like systems.
Will this system drone?
Our bend geometry and muffler selections minimize cabin drone at highway speeds while preserving a confident diesel tone.
Is it truly bolt-on?
Yes—OE locations, contour-bent hangers, and Perfect Fit Lap Joint Exhaust Band clamps simplify install with hand tools. Remember to re-torque clamps after 100–150 miles.

Why Dieselr Aluminized?

Dieselr Corp delivers diesel performance parts engineered for a clean fit, durable service life, and confident sound control. Our aluminized systems balance corrosion resistance, weight, and cost for daily duty and long-haul reliability—backed by real human customer service.

  • American-sourced aluminized steel, mandrel-bent in Canada
  • 16-gauge tubing with contour-bent hangers for OE-clearance
  • Perfect Fit Lap Joint Exhaust Band clamps for a secure, leak-resistant, direct-fit install
  • Designed to maintain exhaust velocity and reduce drone

For maximum results, pair with our Dieselr Signature EGR Upgrade Kits and industry-leading Dieselr performance tuning.

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