L5P Delete and Tune Kit | 6.6L Duramax | 2017-2026 GMC/Chevrolet – options and add to cart
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2025 Chevy/GMC Silverado/Sierra 6.6L L5P Duramax Delete Kit
Take your 2025 GM Sierra or Chevrolet Silverado 2500/3500 with the L5P Duramax to the next level. This kit removes the DPF, DEF, and EGR systems, letting your truck run stronger, breathe easier, and get better fuel efficiency.
Please Note: The 2025 L5P ECMs must be sent to HP Tuners to be unlocked before tuning. This unlock service is NOT included in the kit.
Vehicle Compatibility
Make/Model
GMC Sierra 2500, 3500
Chevrolet Silverado 2500, 3500
Year Range
2024-2025
Engine Type
6.6L Duramax Diesel
What's Included in the Kit
ECM Unlock & Tuning
- L5P ECU Unlock Kit
- OBD2 Flash Delete Tuning Interface
EGR System
- Complete EGR Valve & Cooler delete kit
Exhaust System Of Your Choice
- Stainless Steel Delete Pipe
- 4" Stainless Steel Exhaust System
- 5" Stainless Steel Exhaust System
Key Benefits & Features
Future-Proof Tuning
Compatible with GM’s latest ECU software
Enhanced Airflow
3-bolt flange design ensures leak-free exhaust integration
Thermal Management
EGR removal reduces engine temps by 20-25%, protecting turbos and pistons
Plug-and-Play
Pre-configured files and harnesses streamline installation.
Important Note: This L5P Delete Kit is intended for off-road use only. Please check your local regulations before purchasing.