• Dieselr Aluminized 4" Cat & DPF Race Pipes | GM 2500/3500 6.6L DURAMAX LML 2015.5-2016 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 LML 2015.5-2016

Dieselr Aluminized 4" Cat & DPF Race Pipes | GM 2500/3500 6.6L DURAMAX LML 2015.5-2016

Dieselr Parts

SKU: 256-030134

$558.00 USD
$600.00 USD $558.00 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 LML GM Duramax
Year(s)
2015.5-2016
Product type
Aluminized Race Pipe

The Dieselr Aluminized 4" Cat & DPF Race Pipes (2015.5–2016) are engineered for maximum flow efficiency, durability, and precise fitment. Constructed from 4-inch heavy-gauge aluminized steel, these pipes provide a smooth, unrestricted exhaust path that helps maintain cooler temperatures and consistent power under load.

Each Dieselr system is mandrel-bent for optimized airflow and precision-welded for structural strength and longevity. The aluminized coating shields against corrosion, heat, and debris, ensuring reliable performance even in harsh environments.

Designed with factory-style alignment and clamping points, installation is straightforward, resulting in a tight, clean fit that holds up over time. Built to Dieselr’s performance standards, this setup combines mechanical strength, seamless flow, and proven endurance.

Key Features

  • 4" aluminized steel for strength and corrosion resistance
  • Mandrel bends for efficient, consistent exhaust flow
  • Factory-style hangers for clean, secure installation
  • Tested for long-term reliability under demanding conditions

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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