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2017-2023 6.6L L5P / L5D Duramax 67/67 Drop-In Turbo

$3,999.00
$3,999.00 $4,999.00
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2017-2023 6.6L L5P / L5D Duramax 67/67 Drop-In Turbo

The Black Sheep Industries 67/67 Drop-In Turbo for the 2017-2023 6.6L L5P and L5D Duramax platform is engineered for customers seeking increased airflow, higher horsepower capability, improved towing performance, and strong street drivability while retaining factory-style fitment.

Designed as a direct drop-in replacement for the factory turbocharger, the 67/67 offers a significant improvement in airflow efficiency over stock. This turbocharger is an excellent choice for tuned trucks, aggressive street builds, performance towing applications, and customers planning additional fueling upgrades.

If you are comparing L5P turbo options, visit our L5P / L5D Duramax Turbocharger Collection or compare this turbo against the 64/67 L5P Duramax Drop-In Turbo .

Why Choose the 67/67 L5P Duramax Turbo?

The 67/67 configuration is built for customers who want more top-end airflow and higher horsepower potential while maintaining strong drivability. It is a great option for L5P Duramax owners who have outgrown the factory turbocharger and want a more capable drop-in upgrade without converting to a fixed geometry setup.

  • 67mm compressor wheel
  • 67mm turbine wheel
  • Direct drop-in fitment
  • Improved airflow efficiency
  • Higher horsepower capability
  • Strong street performance
  • Improved towing performance
  • Excellent top-end airflow
  • Supports additional fueling and custom tuning
  • Retains factory-style drivability

67/67 vs Factory L5P Turbo

Feature Factory L5P Turbo BSI 67/67 Drop-In Turbo
Airflow Capability Factory-Level Significantly Improved
Towing Performance Good Very Good
Top-End Power Limited Excellent
Spool-Up Excellent Very Good
Performance Potential Limited High
Best Use Stock Trucks Tuned Trucks, Street Builds, Performance Towing

64/67 vs 67/67 L5P Duramax Turbo

Feature 64/67 Drop-In Turbo 67/67 Drop-In Turbo
Spool-Up Excellent Very Good
Towing Performance Excellent Very Good
Low-End Response Excellent Very Good
Top-End Airflow Very Good Excellent
Horsepower Potential Moderate to High High
Best Application Daily Driving and Towing Street Performance and Higher Horsepower Builds

Best Applications

  • Tuned L5P Duramax trucks
  • Aggressive street performance builds
  • Performance towing applications
  • Higher horsepower diesel builds
  • Trucks with supporting fueling upgrades
  • Customers wanting more top-end airflow

Recommended Supporting Modifications

For best results, this turbocharger should be paired with proper supporting modifications and professional tuning.

  • Custom tuning
  • Lift pump system
  • High-flow intake system
  • Intercooler pipe upgrades
  • Transmission tuning
  • EGT monitoring
  • Free-flowing exhaust system where applicable

Helpful L5P Duramax Turbo Resources

Frequently Asked Questions

Is the 67/67 L5P turbo good for towing?

Yes. The 67/67 drop-in turbo can tow very well, especially for customers who want increased airflow and stronger top-end performance while still retaining street-friendly drivability.

Will this turbo lower EGTs on my L5P Duramax?

A properly matched upgraded turbocharger can help reduce exhaust gas temperatures by improving airflow efficiency and reducing restriction under load.

Is the 67/67 better than the 64/67 for horsepower?

Yes. The 67/67 generally offers more top-end airflow and higher horsepower capability than the 64/67, making it a better fit for more aggressive street builds and higher horsepower applications.

Does this turbo require tuning?

Custom tuning is strongly recommended to maximize performance, drivability, boost control, and long-term reliability.

Is this a direct drop-in turbo?

Yes. This turbocharger is designed as a direct drop-in upgrade for compatible 2017-2023 6.6L L5P and L5D Duramax applications.