6.6L L5P
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14%
Full Delete Kit DPF/EGR/DEF | GM/Chevy Duramax 6.6L L5P | 2024-2025
Price range: $3,440 through $3,958 In Stock
3%
GM/Chevy Duramax L5P | Full Delete Bundle (DPF/DEF/EGR) | 2017-2023
Price range: $3,159 through $3,766 In Stock
ECU Unlock Tool | DPF Delete Tuning Unlock ECM | GM Duramax Diesel L5P | 2017-2023
Price range: $1,059 through $3,228 In Stock
11%
3%
GM/Chevy Duramax 6.6L L5P | Full Delete Bundle (DPF/DEF/EGR) | 2017-2019
Price range: $3,159 through $3,766 In Stock
ECU Unlock Tool | DPF Delete Tuning Unlock ECM | GM Duramax Diesel L5P | 2017-2019
Price range: $1,059 through $3,228 In Stock
3%
GM/Chevy Duramax L5P | Full Delete Bundle (DPF/DEF/EGR) | 2020-2023
Price range: $3,159 through $3,766 In Stock
ECU Unlock Tool | DPF Delete Tuning Unlock ECM | GM Duramax Diesel L5P | 2020-2023
Price range: $1,059 through $3,228 In Stock
31%
EGR Delete | GM Duramax Diesel L5P 2020-2025
Original price was: $429.$299Current price is: $299. In Stock
31%
EGR Delete | GM Duramax Diesel L5P 2017-2019
Original price was: $429.$299Current price is: $299. In Stock
11%
24%
L5P 3.5″ Down-pipe 2020-2025 GM Duramax
Original price was: $467.$357Current price is: $357. In Stock
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| 5 star | 49% | |
| 4 star | 51% | |
| 3 star | 0% | |
| 2 star | 0% | |
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1-5 of 1898 reviews
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Installation was mostly straightforward. The only reason for a lower rating was that the exhaust pressure sensor didn’t align with the bracket. I found a proper solution myself and secured it correctly.
Only reason this isn’t five stars is the repeated trips for hardware. Do yourself a favor and grab a few extra flange bolts ahead of time.
I should have done this years ago. The process was simple and the truck now sounds and performs the way it should have from the factory. Fuel mileage improved by about 6 MPG.
Ordering was simple and support quickly resolved an initial file issue. Exhaust install was easy and the 5-inch option sounds great. My only complaint is not knowing exactly what each tune does.
This is exactly what the truck needed. It finally feels open and responsive like it should have from the factory.