• Dieselr Aluminized 4" Cat Back Exhaust Single | GM 2500/3500 6.6L DURAMAX LB7/LLY/LBZ w/OEM 4 Bolt Flange 2001-2007 Aluminized Exhaust Dieselr Parts
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  • Aluminized

Dieselr Aluminized 4" Cat Back Exhaust Single | GM 2500/3500 6.6L DURAMAX LB7/LLY/LBZ w/OEM 4 Bolt Flange 2001-2007

Dieselr Aluminized 4" Cat Back Exhaust Single | GM 2500/3500 6.6L DURAMAX LB7/LLY/LBZ w/OEM 4 Bolt Flange 2001-2007

Dieselr Parts

SKU: 256-011134

$590.00 USD
$640.00 USD $590.00 USD Sale
Shipping calculated at checkout.

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
GM Duramax Models, 6.6L LB7 GM Duramax, 6.6L LLY GM Duramax, 6.6L LBZ GM Duramax
Year(s)
2001-2007
Product type
Aluminized Exhaust

The Dieselr Aluminized 4" Cat Back Exhaust (2001–2007) is engineered for performance-focused diesel platforms equipped with a factory 4-bolt flange connection. Built from 4-inch heavy-gauge aluminized steel, this system enhances exhaust flow, reduces restriction, and provides consistent performance under high-load conditions.

Each Dieselr exhaust is mandrel-bent for precision airflow and TIG-welded for long-term structural strength. The aluminized finish resists corrosion, oxidation, and road wear—ensuring lasting durability and reliability in any environment. Installation is straightforward, with factory-style alignment and hanger points designed for a perfect, rattle-free fit.

Refined through field testing and precision manufacturing, this Dieselr aluminized system delivers strong flow, clean tone, and mechanical dependability built to last.

Key Features

  • 4" aluminized steel construction for corrosion protection and strength
  • Mandrel bends for smooth, unrestricted exhaust flow
  • Precision-welded seams for leak-free longevity
  • Factory-style hanger alignment for quick, secure 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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