2011-2016 LML 6.6 Duramax Delete Kit

17 Products

Filter products

show 17 collections

FAQS

Yes. GM made a mid-cycle change in 2015.5 affecting EGR plumbing and exhaust routing. SPELAB sells separate DPF delete pipes and All-in-One kits for each sub-generation — confirm your build date before ordering.

The full kit with tuner ($1,349) includes an EFILive or EZ Lynk device. The hardware-only kit ($309.99) does not — you'll need to source tuning separately for CEL elimination and proper fueling.

Strongly recommended. The LML uses a CP4.2 injection pump prone to catastrophic failure if diesel contamination occurs. A Fuel Sump Kit or CP3 conversion prevents pump cavitation and protects the entire injection system.

SPELAB's LML EGR Delete Kit removes the EGR cooler, EGR valve, and associated hardware. The optional High Flow Intake Elbow replaces the restrictive factory elbow for improved airflow post-delete.

No. SPELAB's LML DPF delete pipes are not compatible with Cab & Chassis configurations. They fit standard Crew Cab / Extended Cab pickup bodies only.

A full DPF/EGR/DEF delete with custom EFILive tuning typically adds 80–120 hp and 200+ lb-ft torque. Stock LML produces 397 hp / 765 lb-ft. Results depend on tune calibration and fueling upgrades.

Yes. The LML uses DEF (Diesel Exhaust Fluid) for SCR aftertreatment. The All-in-One kit addresses DPF, EGR, and DEF together. Deleting only one or two systems without tuning will cause derates and fault codes.

The CCV PCV Reroute Delete Kit for 2011–2016 LML relocates crankcase vapors away from the intake. It's compatible with 2004–2010 LLY/LBZ/LMM as well, making it a versatile upgrade for multiple Duramax generations.