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MBRP 4 inch Exhaust-Single Outlet 06-07 6.6L GM Duramax LLY / LBZ

As low as $399.99
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The Best Systems Start with the Best Materials

Built from heavy duty aluminized steel, 409 stainless or 304 stainless steel MBRP performance exhaust systems offer a value price without compromising on the quality built into every component. While the seams are a major point of rust through with some budget systems our fully sealed tubing adds years to your system. Constructed to the same specifications as the top of the line Pro Series MBRP backs this line with an industry leading 3 Year Warranty.

Built to Perform

You count on your truck to tow all of your gear to where you want it. With your MBRP performance exhaust you can make that happen with up to 18 HP more horsepower and 28 ft/lb more torque. Give your truck more pulling power and much improved throttle response with an MBRP diesel exhaust system. Our systems are so much more efficient, it will be easy to see what your truck can really do.

Minimize Backpressure

The secret to getting more out of your diesel engine is to give it lots of cool, clean air. The only way that you can get fresh air in is to get the hot air out. From the fully mandrel bent tubing to minimal bend degree angles, your MBRP performance system gets exhaust out fast. Drop exhaust gas temperature by up to 200?F and set the stage for all the performance you want. An MBRP performance exhaust system is the starting point to getting the most from cold air intakes, programmers, modules and downloaders.

Easy Installation

MBRP systems are as much fun to install as to drive with on your truck. Bolt-on, no weld design makes installing this on your truck a no hassle one and a half to two hour project. Everything is direct fit to the OEM hangers and you get all the clamps and parts you will need, all in one box, no matter what configuration of truck you have.

Sound & Style

Performance is one thing, MBRP believes that appearance and sound is just as important. Every MBRP performance exhaust system has been specifically tuned to get the optimal sound from your pickup. With our MBRP brand etched on the tips and our unmistakable styling, there's no question that you have the hottest exhaust on the road.

Dually Models
D Sub Models were designed for dually vehicles. Several years ago when MBRP incorporated tips with our kits they discontinued these SKUs. The non- "D" SKUs (i.e. S6012AL covers what would have been S6012ALD)

Choose from

  • Aluminized Steel Installer Series- 3 Year Warranty
  • 409 Stainless Steel XP Series- Lifetime Warranty
  • 304 Stainless Steel Pro Series- Lifetime Warranty

MBRP 4" Exhaust-Single Outlet, Cat Back

2006-2007 6.6L GM Duramax LLY / LBZ

  • Mirror polished T304 stainless steel tips
  • 3 Years Warranty or Lifetime Warranty On XP and Pro Series
  • Rich, mellow exhaust note
  • Installs with common hand tools
  • Boosts torque and horsepower
  • Specially designed for particulate filter emission control systems

MBRP 4 inch Exhaust-Single Outlet 06-07 6.6L GM Duramax LLY / LBZ fits the following vehicles:

  • 2006 GMC Sierra 2500 HD
  • 2006 GMC Sierra 3500
  • 2007 GMC Sierra 2500 HD
  • 2007 GMC Sierra 3500 HD