True North Turbos 2017–2023 6.6L L5P / L5D Duramax 67/67 Drop-In Turbo

More power without the fabrication headaches — this is the L5P L5D Duramax 67/67 drop-in turbo built specifically for owners who want a meaningful upgrade without sacrificing the towing capability and daily reliability their truck was bought to deliver.

Why the 67/67?

The 67/67 wheel sizing sits in the sweet spot between aggressive performance and real-world usability. Compared to the 64/67 sibling, the larger 67mm compressor wheel delivers greater airflow capacity and power headroom, while the matched 67mm turbine keeps spool-up honest enough for loaded towing and everyday driving.

It is the configuration for owners who want to do more with their truck, not just make it faster on an empty highway.

Features & Benefits

• Verified 2017–2023 Fitment — Engineered specifically for the 6.6L L5P and L5D Duramax. Confirm your engine code before ordering; this turbo is built around exact chassis specifications for the Silverado/Sierra 2500 and 3500 platform.
• True Drop-In Replacement — Designed to utilize factory mounting points and existing oil and coolant connections, keeping installation straightforward and custom fabrication out of the equation.
• Balanced Performance Profile — The 67/67 configuration is calibrated for drivers who tow heavy loads regularly. Improved airflow efficiency helps manage exhaust gas temperatures under load, supporting engine longevity in demanding conditions.
• Performance Headroom — Whether you are running a tuned calibration or planning to add one, the 67/67 has the capacity to support meaningful power gains beyond what the factory turbo allows.
• Canadian-Made by True North Turbos — Designed and built by Black Sheep Industries in Canada, so North American buyers get domestic-quality engineering without relying on overseas sourcing.
• Domestic Support & Shipping — Sold and supported from Canada, with straightforward access for customers across Canada and the United States.

Tuning Note: Supporting modifications and a professional tune are strongly recommended to get the most out of this upgrade and ensure your engine management is calibrated to the increased airflow.

Your L5P or L5D deserves a turbo that keeps up with the work you actually do — the True North Turbos 67/67 drop-in is that turbo.

FAQ

Does this turbo fit 2017–2023 6.6L L5P and L5D Duramax trucks?

Yes. It is engineered specifically for the 6.6L L5P and L5D Duramax. Confirm your engine code before ordering; this turbo is built around exact chassis specifications for the Silverado/Sierra 2500 and 3500 platform.

Is this a true drop-in replacement?

Yes. It is designed to utilize factory mounting points and existing oil and coolant connections, keeping installation straightforward and custom fabrication out of the equation.

Why choose the 67/67 configuration?

The 67/67 wheel sizing balances aggressive performance with real-world usability. Compared to the 64/67 sibling, the larger 67mm compressor wheel offers greater airflow capacity and power headroom, while the matched 67mm turbine keeps spool-up honest enough for loaded towing and everyday driving.

Is tuning recommended for this turbo upgrade?

Yes. Supporting modifications and a professional tune are strongly recommended to get the most out of this upgrade and ensure engine management is calibrated to the increased airflow.