• Dieselr Aluminized 4" Cat & DPF Race Pipes | GM 2500/3500 6.6L DURAMAX L5P 2017-2023 Aluminized Race Pipe Dieselr Parts 4-inch Race Pipe with Muffler
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  • Aluminized

Dieselr Aluminized 4" Cat & DPF Race Pipes | GM 2500/3500 6.6L DURAMAX L5P 2017-2023

Dieselr Aluminized 4" Cat & DPF Race Pipes | GM 2500/3500 6.6L DURAMAX L5P 2017-2023

Dieselr Parts

SKU: 256-130134

$590.00 USD
$645.00 USD $590.00 USD Sale
Shipping calculated at checkout.
Race Pipe Exhaust Type

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)
2017-2023
Product type
Aluminized Race Pipe

The Dieselr Aluminized 4" Cat & DPF Race Pipes (2017–2023) are built for performance-focused diesel owners who expect uncompromising durability and flow efficiency. Manufactured from 4-inch heavy-gauge aluminized steel, these pipes deliver a clean, unrestricted exhaust path that improves airflow and consistency under demanding load conditions.

Each Dieselr race pipe is mandrel-bent for precision flow and TIG-welded for long-term integrity. The aluminized coating protects against corrosion, road salt, and high heat, ensuring performance longevity even in harsh environments. Installation is straightforward thanks to factory-style hangers and secure connection points, providing a clean, professional fit.

Built, tested, and refined under real operating conditions, this Dieselr aluminized system embodies the brand’s standard of mechanical excellence—simple, durable, and built from steel that earns its keep.

Key Features

  • 4" aluminized steel for maximum strength and corrosion resistance
  • Mandrel bends for efficient, consistent exhaust flow
  • Precision welds for a secure, long-lasting seal
  • OEM-style mounting for clean, straightforward installation

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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