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FLO~PRO

4" Cat Back Single | 2001-2007 GM 2500/3500 6.6L DURAMAX w/OEM 4 Bolt Flange

4" Cat Back Single | 2001-2007 GM 2500/3500 6.6L DURAMAX w/OEM 4 Bolt Flange

SKU: 431110

Regular price $932.00 CAD
Regular price Sale price $932.00 CAD
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FLO~PRO Performance Exhaust System – Made in Canada from U.S. Steel Tubing

The FLO~PRO performance exhaust system is built for diesel owners who demand real quality, real performance, and real materials. Every system is manufactured in Canada using premium U.S. steel tubing & Steel Hangers—not offshore metal, not thin imports, and never low-grade overseas exhaust kits.

Available in 16-gauge aluminized steel or T409 stainless steel, FLO~PRO exhaust systems are designed to handle harsh climates, heavy towing, and high exhaust temperatures while delivering a precise, factory-quality fit.

Each kit is engineered for simple, bolt-on installation, featuring pre-welded contour bends, precision contour-bent hangers, and upgraded flanges for proper alignment and superior sealing. Just a clean install that saves time and eliminates frustration.

Once installed, improved exhaust flow helps lower exhaust gas temperatures (EGTs), increase throttle response, and unlock noticeable performance gains, especially under load. And because these systems are built from heavy-gauge U.S. steel, the sound is deep, aggressive, and clean-not thin, raspy, or hollow like imported alternatives.

This is real steel, built the right way.
For powerhouse performance, FLO~PRO delivers.

Material Options

  • 16-Gauge Aluminized Steel
    Heavy-gauge U.S. steel tubing with a corrosion-resistant aluminized coating. Ideal for daily driving and towing while offering excellent durability and value.
  • T409 Stainless Steel
    Premium U.S.-sourced stainless steel designed for superior corrosion resistance and long-term durability in harsh winter and high-heat environments.

Key Features

  • Manufactured in Canada
  • Built using U.S. steel tubing, & Steel Hangers.
  • Available in 16-gauge aluminized steel or T409 stainless steel
  • Pre-welded contour bends for accurate fitment
  • Contour-bent hangers for OEM-style alignment
  • Upgraded flanges for improved sealing and longevity
  • High-quality lap joint clamps included for secure, leak-free connections
  • Improved airflow and reduced EGTs
  • Signature FLO~PRO exhaust tone—deep, clean, and aggressive

 

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FAQ's

We partner with industry-leading engineers to provide safe, reliable, and high-output custom tunes. Every tune is optimized for your specific vehicle platform to ensure peak performance without compromising engine longevity.

We know downtime is money. That’s why we ship most in-stock orders the same day. Our logistics network ensures your rig gets back on the road as fast as possible.

Absolutely. We don't just sell parts; we know diesel inside and out. Every product in our catalog is sourced from top-tier manufacturers and tested by experts to ensure it performs mile after mile.

We specialize in Ford Powerstroke, RAM Cummins, and GM Duramax platforms. Please use our "Shop By Vehicle" selector or contact our support team to verify the exact fitment for your year and model.