Diesel Tuner EGR/DPF/DEF/CCV Delete 2011-2015 LML 6.6L Duramax All-in-One Kit | SPELAB

LML Duramax All-in-One Delete Kit with Diesel Tuner Overview

Unlock the full potential of your 2011–2015 Chevy/GMC 6.6L LML Duramax with the SPELAB Diesel Tuner All-in-One Delete Kit. Designed for off-road use, this comprehensive package includes everything you need to fully delete the restrictive EGR, DPF, DEF, and CCV systems. Whether you're building a performance truck or simply want to extend the life of your engine, this kit delivers improved power, fuel economy, and reduced operating temperatures.
Important Fitment Note: For 2015 models, visually confirm whether you have a V-band clamp (2011–2015 Chevy Duramax delete kit – V-band)) or a 3-bolt flange (2015.5–2016) turbo connection before ordering.

Read details before ordering Mini Maxx V2 Delete Tuner

Key Features of This Full Delete Package

• Complete Delete Solution:
  Removes EGR, DPF, DEF, and CCV systems in one package — perfect for full off-road builds.

• Power-Boosting Mini Maxx V2 Tuner:
  Allows custom tuning for maximum performance and system compatibility.

• Free-Flowing 5" Dual Exhaust System:
  DPF race pipe and downpipe-back design improves airflow and throttle response.

• Better Fuel Economy:
  Eliminate regeneration cycles and reduce fuel waste with a cleaner engine setup.

• Lower Exhaust Temperatures:
  Improved combustion chamber efficiency helps prevent overheating and component fatigue.

All-in-One Kit Fitment Notes

• 2011-2015 Chevy /GMC Duramax Diesel LML.Silverado and Sierra pickup trucks
• Does NOT fit Cab & Chassis.

2015 or 2015.5 Connection Check

2015 is a split year. The 2011-2015 downpipe is secured to the turbo-direct pipe using a V-band style clamp. The 2015.5-2016 uses a 3 bolt flange style connection. Be sure to visually verify the clamp style your truck is equipped with.

What's Included in the Kit

• Mini Maxx V2 Delete Tuner
• EGR Delete Kit
• DPF Delete Race Pipe
• CCV PCV ReRoute Delete Kit
• Downpipe Back Duals Exhaust(DPF Delete Race-style)

Note: Accessories vary by order and may not include all listed.

Performance Benefits After a Full Delete

• Free-flowing exhaust system for more power and better fuel economy
• Improved combustion chamber temperatures
• Better longevity of your engine's cooling and exhaust system
• Increased power from more powerful tune flashes

Installation Guides

 SPELAB EGR Delete Kit For 11-16 GMC Chevy LML 6.6L Duramax

 SPELAB 2011-2015 6.6L Duramax LML DPF Delete Pipe Install Instruction

 SPELAB CCV Reroute Kit For 11-16 GMC Chevy LML 6.6L Duramax

 Mini Maxx V2 Installation Guide

Why Choose a Full Delete on a 2015 LML Duramax?

Drivers approaching high mileage (e.g., 120 k mi) often report injector and DEF issues. A 2015 LML full delete kit eliminates potential failure points and reduces overall system complexity — preferred by owners planning long-term ownership or hard-duty use.

Early vs Late 2015 Fitment Tips:

Early 2015 trucks with V-band turbo setups integrate smoothly with this kit. Late 2015 models require careful shopping: many aftermarket vendors stock only the flange version, and the OEM clamp may cost extra if omitted. Always clarify before purchasing a 2015 Chevy Duramax delete kit.

Full-Delete Build Paths:

• Basic DPF Delete only — low-cost entry; tune disables emissions components.
• DFP + EGR Blocker Plates — mid-tier option, removes EGR cooler hardware, maintains engine cleanliness.
• 100% Full Delete — removes DPF, EGR, CCV, throttle grid, intake grid-heater tube (Y-bridge kit); best flow and aesthetic upgrade but highest cost — ideal for serious owners.

All-In-One Kit vs Build-It-Yourself Setup

Combining hardware and tuned files in a single kit is more convenient and cohesive — assembled at one point-of-sale, making SPELAB's kit a strategic choice for a complete 2015 LML Duramax delete kit.

LML Duramax Delete Kit FAQs

Q1: How do I identify whether I have an early or late 2015 Duramax LML for the correct delete kit?
A1: Early 2015 models have a V-band clamp at the turbo connection, while late 2015 models use a 3-bolt flange. Visually inspecting this connection point is crucial before ordering the correct delete kit.

Q2: Can I delete only the DPF on my 2015 Chevy Duramax instead of a full delete?
A2: Yes, partial deletes like DPF-only are possible. However, full delete kits offer better performance, fuel economy, and reliability. Partial deletes still require tuning.

Q3: Are there tuning options other than the Mini Maxx V2 for the 2011–2015 Duramax delete kit?
A3: While this kit includes the Mini Maxx V2, other popular tuning solutions include EFI Live and EZ Lynk. However, compatibility, support, and ease-of-use may vary.

Q4: Does the 2011 Duramax delete kit support cold weather starts or high idle tuning?
A4: Yes, the Mini Maxx V2 tuner included in the 2011 Duramax delete kit offers optional high idle settings, beneficial for cold climates or warming up the engine faster.

Q5: Can I retain the factory exhaust system with this 2013 Duramax delete kit?
A5: No, this kit includes a 5” downpipe-back dual exhaust system. The factory exhaust must be removed to accommodate the free-flowing design.

Q6: What are the risks of not tuning the ECM after installing the 2012 Duramax delete kit?
A6: Without proper tuning, your truck will throw engine codes, run improperly, and potentially enter limp mode. A delete-capable tuner is essential.

Q7: Is the CCV reroute mandatory with the 2015 LML full delete kit?
A7: It’s highly recommended. The CCV reroute eliminates oil vapor re-entry into the intake, reducing carbon buildup and improving overall engine hygiene.

Q8: Will deleting emissions components affect my truck's resale value?
A8: Yes, deleting emissions systems may lower resale value for on-road buyers and limit eligibility for trade-ins or certified used programs. It may appeal more to off-road or performance buyers.

Q9: Does the 2015 Chevy Duramax delete kit require removal of the 9th injector?
A9: Yes, in a full delete, the 9th injector (used for DEF injection) is disabled. Some users replace the downpipe entirely to avoid capping off unused ports.

Q10: Can this delete kit improve turbo response on a 2012 LML Duramax?
A10: Yes, the freer exhaust flow and elimination of backpressure enhance turbo spool-up time, leading to quicker throttle response and better acceleration.