• Dieselr Aluminized Cat & DPF Race Pipe | GMC/Chevy 6.6L GM Duramax LML (2011-2015) Aluminized Race Pipe Dieselr Parts 4-inch CAT Race Pipe
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  • Aluminized

Dieselr Aluminized Cat & DPF Race Pipe | GMC/Chevy 6.6L GM Duramax LML (2011-2015)

Dieselr Aluminized Cat & DPF Race Pipe | GMC/Chevy 6.6L GM Duramax LML (2011-2015)

Dieselr Parts

SKU: 256-100134

$423.00 USD
$460.00 USD $423.00 USD Sale
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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 LML GM Duramax
Year(s)
2011-2015
Product type
Aluminized Race Pipe

The Dieselr Aluminized Cat & DPF Race Pipe (2011–2015 6.6L Duramax LML) is designed for GMC Sierra and Chevy Silverado 2500/3500 HD owners who demand a reliable, high-flow exhaust solution built for performance and longevity. Made from heavy-duty aluminized steel, this race pipe improves exhaust velocity, reduces restriction, and helps maintain cooler EGTs under load.

Each Dieselr pipe is mandrel-bent for consistent flow and precision-welded to ensure strength and leak-free performance. The aluminized coating provides superior resistance to heat and corrosion—ideal for heavy-use and harsh weather conditions. Designed to mount cleanly to OEM locations, installation is straightforward and secure.

Every Dieselr product is tested on actual Duramax trucks for real-world fitment and performance. This race pipe delivers what matters—durability, flow, and a clean, functional design that lasts.

Key Features

  • Aluminized steel construction for lasting corrosion protection
  • Mandrel-bent tubing for smooth exhaust flow
  • OEM-style fitment for straightforward installation
  • Tested on 6.6L Duramax platforms for verified fit and strength

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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