DIESELR Exhaust Manifold Kit w/ Up-Pipes (2001-2016 Duramax 6.6L LB7/LLY/LBZ/LMM/LML)

The DIESELR Exhaust Manifold Kit with Up-Pipes for Duramax is built for 2001–2016 GM trucks running the 6.6L LB7, LLY, LBZ, LMM, or LML. If you’re done with restrictive factory manifolds and thin-walled up-pipes that fail under heat, this kit gives you what matters — thicker steel, smoother flow, and hardware that holds under pressure.

No hype. Just stronger parts that bolt in and perform.

Each DIESELR Exhaust Manifold Kit with Up-Pipes for Duramax includes:

• High-flow manifolds to reduce backpressure and restore consistent exhaust movement
• Thick-walled up-pipes built for extreme heat and vibration
• Gaskets and hardware for a proper seal and easy install
• Direct-fit design, no modifications needed

Built from premium materials, this system helps control EGTs and supports steady turbo response under load — ideal for towing, work, or off-road setups.

Fitment:
2001–2016 Duramax 6.6L (LB7, LLY, LBZ, LMM, LML)

Includes:
Exhaust manifolds
Up-pipes
Gaskets & mounting hardware
Bolt-on fit, no tuning required

Note: For off-road/competition use only. Installation on emission-equipped vehicles may violate regulations. Always check local laws.