2024-2026 L5P Duramax Motor Ops RTD4 Custom Tune Files

Fits

You must have the HP Tuners ECM Unlock Service done first. Click here for the service.

Wake up your 2024–2025 Chevy Silverado or GMC Sierra 6.6L L5P Duramax with Motor Ops single tune files built for real performance gains. Whether you’re hauling heavy, daily driving, or chasing max horsepower, there’s a calibration here to match your style.

Note: This package is tunes only. You’ll need an RTD4, click here for the device. MPVI2/MPVI3 cannot be used at this time. You will also need 8 tune credits, click here for credits.

Race / Max Effort
Maxes out the factory turbo
+140 RWHP / +260 ft-lbs over stock

Sport
Unloaded daily driving fun
+100 RWHP / +200 ft-lbs over stock

Light Tow
Tow up to 8,000 lbs & still enjoy sporty driving
Safe EGTs at or below factory
+80 RWHP / +190 ft-lbs over stock

Heavy Tow
Tow up to GVWR with a wider torque curve
Safe EGTs at or below factory
+40 RWHP / +100 ft-lbs over stock

Optimized Stock
Refined factory calibration
Better throttle response, smoother power
+15 RWHP over stock

Required for Tuning

• HP Tuners RTD4
• 8 HP Tuners Universal Credits

Click Here for Instructions