BD DIESEL 1041460 DURAMAX EXHAUST MANIFOLD – 2001–2010 GM 6.6L LB7/LLY/LBZ/LMM (SILVERADO/SIERRA 2500/3500)

Product Description

The BD DIESEL 1041460 Full Bore Exhaust Manifold is the must-have upgrade for 2001–2010 GM 6.6L Duramax trucks (LB7 / LLY / LBZ / LMM) to restore balanced exhaust flow and reduce heat buildup. The factory driver-side manifold is notoriously restrictive (“pinched down”) which disrupts exhaust flow, increases cylinder load, and contributes to higher exhaust gas temperatures. BD’s Full Bore design eliminates that restriction to help your Duramax run cooler and more efficiently.

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Built from high-silicon ductile iron for strength and thermal stability, this manifold is a direct bolt-on replacement for the driver side and is pre-drilled and tapped for popular EGT probes. It’s a proven solution for Duramax owners who want improved exhaust flow, reduced EGTs, and better overall engine balance—especially on towing and work-truck applications.

Fitment

• 2001–2010 GM Silverado / Sierra 2500HD / 3500HD
• 6.6L Duramax Diesel: LB7 / LLY / LBZ / LMM
• Driver-side exhaust manifold only

Key Features & Benefits

• Replaces restrictive factory “pinched” driver-side manifold
• Restores balanced exhaust flow between banks
• Helps reduce exhaust gas temperatures (EGTs)
• High-silicon ductile iron construction for durability
• Direct bolt-on installation
• Pre-drilled & tapped for common EGT probes

Cross-Reference & Compatible BD Diesel Products (BD DIESEL ONLY)

• BD DIESEL 1041480 DURAMAX EXHAUST MANIFOLD – 2004.5–2010 LLY/LBZ/LMM (PASSENGER SIDE)
• BD DIESEL 1041470 DURAMAX EXHAUST MANIFOLD – 2001–2004 LB7 (PASSENGER SIDE)

Is this manifold for the driver side or passenger side?

This part is for the driver side only.

Does this manifold include gaskets?

Gaskets are not included. We recommend installing with new OEM-style gaskets and hardware for best results.

Can I install an EGT probe in this manifold?

Yes. This manifold is pre-drilled and tapped to accept many common EGT probes.

Specifications for BD DIESEL PRODUCTS 1041460