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USD 1081.22
Part #: MBS6014304

MBRP 4" Pro-Series Dual Cat-Back Exhaust System S6014304

06-07 GM 6.6L Duramax 2500/3500 EC/CC
Part #: MBS6014304
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XDP - MBRP Authorized Online Retailer XDP is a MBRP Factory Authorized Online Retailer ID# 600207727. We would like you to shop with confidence knowing your purchase is covered by the manufactures warranty.   
  • 4" Mandrel bent tubing for maximum flow
  • Increased Towing Capabilities
  • Direct Fit Design
  • Cat.-Back System
  • Exhaust Tips Included

The Duramax has a refined toughness to it. MBRP Inc has left the refined part to General Motors, and added extra toughness. The Duramax makes big power gains with this high flow 4" mandrel bent exhaust system. Each system is a direct bolt on application and is manufactured as a full 4" system all the way to the 5" diameter exhaust tip*. Lower EGT (exhaust gas temperature), improved fuel economy along with more towing power are just some of the added benefits of having this system installed on the Duramax. Not designed for use on trucks with in-bed hitch.

Lifetime Warranty

Additional Information

Install Sheet


  • MFG. Number S6014304
  • Manufacturer Name MBRP Inc.
  • Shipping Weight 89.00 lb.
  • Warranty Yes
  • Warranty Info Lifetime
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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