EGR PARTS
Toughberry EGR Upgrade Kit (2011-2016 Duramax 6.6L LML)
The 2011–2016 LML EGR Upgrade Kit is a no-hassle block-off solution built for tuned 6.6L Duramax trucks. If you...
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Performance catalogue
Tunes, exhaust, intakes and fuel upgrades matched to the Duramax platform.
EGR PARTS
The 2011–2016 LML EGR Upgrade Kit is a no-hassle block-off solution built for tuned 6.6L Duramax trucks. If you...
Exhaust
Built to Last: Constructed from heavy-duty T409 stainless steel for maximum durability. Mandrel-bent for a perfect fit...
TOUGHBERRY
Maximize Exhaust Flow. Lower EGTs. Improve Turbo Response. The TOUGHBERRY 3.5" Downpipe, engineered for the 2017-2026 Duramax L5P,...
Tune Files
2015–2016.5 L5P Duramax trucks may require the ECM to be unlocked before tuning with EZ Lynk. Our...
EGR PARTS
The EGR Upgrade Kit (2017–2019 Duramax L5P) from DIESELR is engineered for Duramax owners who demand long-term reliability, cleaner...
EGR PARTS
The TOUGHBERRY EGR Upgrade Kit (2020–2026 Duramax 6.6L L5P) is engineered for reliability, clean routing, and long-term strength. Built...
EGR PARTS
The TOUGHBERRY EGR Upgrade Kit (2020–2026 Duramax 6.6L L5P) is engineered for reliability, clean routing, and long-term strength....
Exhaust
The TOUGHBERRY Downpipe Back Exhaust L5P Duramax system is designed for serious diesel owners who demand performance, durability,...
Exhaust
TOUGHBERRY Downpipe Back Exhaust - Single (2020-2026 GM 2500/3500 6.6L Duramax L5P) Built for Strength. Engineered for...
Exhaust
TOUGHBERRY Downpipe Back Exhaust - Single (2020-2026 GM 2500/3500 6.6L Duramax L5P) Built for Strength. Engineered for...
Tune Files
2017–2019 Duramax trucks may require the ECM to be unlocked before tuning with EZ Lynk. Our team...
Tune Files
The TOUGHBERRY EZ Lynk Tune Files (2020–2023 Duramax L5P 6.6L) are engineered for truck owners who expect more...
Tune Files
For 2024-2026 GM Duramax L5P owners who want better throttle response, massive torque, and serious pulling power,...