PPEI Engine Tuning PP-17-23-L5P-ET | 2017-2023 Duramax 6.6L L5P

PPEI Engine Calibration for 2017–2023 L5P Duramax (CARB EO Pending)

Revolutionize Your L5P Duramax with PPEI Tuning

PPEI’s tuning for the L5P Duramax is a complete transformation for truck owners who demand power, efficiency, and reliability. Unlike OEM tuning that focuses on crank-rated horsepower, PPEI measures power at the wheels—where it truly matters. Expect real-world performance gains you can feel on every drive.

Proven Results — Real Power Where It Counts

• OEM Engine Rating: 445 HP / 910 lb-ft (at engine)
• PPEI Baseline: 437 HP / 844 lb-ft (at wheels)
• PPEI Tuned Output: Up to 582 HP / 1,207 lb-ft (at wheels)
• Total Gains: +145 wheel horsepower / +363 wheel torque

Power Levels (Selectable via Factory Steering Wheel Controls)

• OEM Stock: Maintains factory power with raised speed limiter (98+ MPH).
• Heavy Tow: Optimized for towing loads over 15,000 lbs with improved torque management.
• Light Tow: Ideal for trailers under 15,000 lbs, balancing power and efficiency.
• All-Purpose: Perfect for everyday driving and light work with smooth, linear power delivery.
• Street: Enhanced throttle response and acceleration for spirited driving.
• Performance: Maximum output mode for racing and track conditions.

Built for Efficiency and Reliability

PPEI’s tuning philosophy isn’t about chasing numbers—it’s about achieving the most efficient balance between power and longevity. Each calibration optimizes fuel delivery, timing, and shift logic to ensure your truck performs flawlessly without compromising reliability. The result is stronger towing power, improved throttle response, and longer drivetrain life.

Why Choose PPEI?

• Industry-leading L5P Duramax tuning with real-world dyno validation.
• Safely maximizes performance while maintaining factory safety parameters.
• Enhances both engine and transmission performance for smooth, reliable operation.
• Trusted by diesel enthusiasts and professional fleets nationwide.

Technical Highlights

• Platform: 2017–2024 L5P Duramax 6.6L
• ECM/TCM Optimization: Custom calibration for both engine and transmission modules.
• Tuning Method: Remote tuning with PPEI via EFILive or similar supported hardware.
• Compliance: CARB EO Pending – engineered for emissions-compliant performance.

Experience the PPEI Difference

PPEI’s L5P Duramax tuning is more than just an upgrade—it’s a complete recalibration of how your truck performs. Enjoy effortless towing, faster acceleration, and improved fuel efficiency while maintaining rock-solid reliability. Whether you’re on the jobsite, towing cross-country, or chasing personal bests on the track, PPEI ensures your Duramax operates at its absolute best.