Explore the full lineup of LML Duramax parts including CP4 to CP3 conversion kits, DPF delete exhaust systems for off-road use, and upgraded turbochargers. Built for 2011–2016 Silverado and Sierra 2500/3500 HDs, these LML performance upgrades help eliminate common fuel system failures while increasing power and reliability. Tuning options support switch-on-the-fly with popular platforms like EZ Lynk and H&S.
Injector Line Set
fits 11-16 GM 6.6L LML Duramax Diesel
Our LML Injector Line Set covers the complete engine of your 11-16 GM 6.6L Duramax LML engine. We highly recommended that you change your...
SWAG Performance Heavy Duty Head Stud Kit
Fits 01-16 GM 6.6 Duramax Diesel Engines
Tested at 220,000+ PSI Tensile Strength
Our Head Stud material properties allow for far grea
Longhorn Fab Stainless Steel Braided Boost Gauge Line Universal - 5' Long - 1/8" Npt 200919
The Longhorn Fab 200919 Stainless Steel Braided Boost Gauge Line gets rid of the cheap, flimsy, and...
Longhorn Fab Knurled Efi Live Dsp5 Custom Switch Knob Fits Most Dsp5 Switches-Green 200956-GREENThe Longhorn Fab Shop 200956 Knurled EFI Live DSP5 Custom Switch Knob makes your truck stand out. Get...
Longhorn Fab Knurled EFI Live Dsp5 Custom Switch Knob Fits Most Dsp5 Switches Black 200956-BLACKThe Longhorn Fab Shop 200956 Knurled EFI Live DSP5 Custom Switch Knob makes your truck stand out. Get...
Longhorn Fab Dsp5 & Csp5 Universal Switch Mount - For Dsp5 & Csp5 Switches 201051Mount your DSP5 or CSP5 switch in your truck without having to drill permanent holes through your dashboard with the...
Longhorn Fab Do Not Reflash Obdii Port Cover Fits Most Obdii Ports 200922
The Longhorn Fab Shop 200922 Do Not Reflash OBDII Port Cover is a must have for anyone that has tuning in their truck. Make...
Fleece 5 Inch 45 Degree Hood Stack Cover FPE-HSC-5-45 5 inch and 6 inch Straight and Miter Cut Fleece Performance Hood Stack covers are made from heavy duty vinyl and come complete with a properly...