How Much Does a 6.6L Duramax Delete Kit Cost? (2024 Pricing Guide)

If you own a 2017-2024 GMC Sierra or Chevrolet Silverado with the 6.6L Duramax (L5P), you may be considering a DPF or EGR delete to improve performance and reliability. But how much does a Duramax delete kit actually cost?

This guide breaks down:
✔ DPF delete pipe pricing
✔ EGR delete kit costs
✔ Full delete kit expenses
✔ Additional tuning & installation fees

1. DPF Delete Pipe Cost (2017-2024 Duramax L5P)

A DPF delete pipe replaces the restrictive Diesel Particulate Filter, improving exhaust flow and reducing backpressure.

Price Range:

• $300 – $600 (depending on material & brand)

• Stainless steel options cost more but last longer

• Aluminized steel is more affordable but less durable

Recommended DPF Delete Pipe

✔ 4-inch mandrel-bent tubing for optimal flow
✔ Direct bolt-on replacement for factory DPF
✔ Fits 2017-2024 GMC & Chevy L5P Duramax

2. EGR Delete Kit Cost

An EGR delete kit removes the Exhaust Gas Recirculation system, preventing carbon buildup in the intake.

Price Range:

• $200 – $400 (includes block-off plates & hardware)

• High-quality kits feature CNC-machined plates

Best Use Case:

✔ Reduces intake soot & heat soak
✔ Extends engine life
✔ Improves throttle response

3. Full Delete Kit (DPF + EGR + DEF) Cost

A full delete kit removes all emissions components for maximum performance (off-road use only).

Price Range:

• $800 – $1,500 (depending on included components)

• Includes:

  • DPF delete pipe

  • EGR block-off plates

  • DEF system removal kit

Best For:

✔ Track/competition use
✔ Maximum horsepower gains
✔ Eliminating all emissions-related failures

4. Additional Costs (Tuning & Installation)

⚠️ Important: A delete kit requires tuning to prevent check engine lights and limp mode.

Tuner Cost:

• $400 – $1,000 (depending on brand)

• Popular Options:

  • EFI Live (most customizable)

  • HPTuners (professional-grade)

  • Duramaxtuner (pre-loaded tunes)

Installation Cost (If Not DIY):

• $500 – $1,200 (shop rates vary)

• DPF delete only: ~$500

• Full delete job: $1,000+

5. Legal Considerations (EPA Compliance)

🚨 Warning: Deleting emissions systems is illegal for on-road use in the U.S. and Canada.

• EPA fines can exceed $10,000 per violation

• Some states (CA, NY, etc.) enforce strict emissions testing

• Off-road/competition use only

Final Thoughts: Is a Duramax Delete Kit Worth It?

Pros:

✔ Better MPG (3-5+ increase)
✔ Increased horsepower (50-100+ HP gains)
✔ Longer engine life (no more DPF/EGR failures)

Cons:

❌ Illegal for street use
❌ Voids warranty (if still active)
❌ Upfront cost ($1,500+ for full delete + tune)

Where to Buy a Quality Delete Kit

For a reliable DPF delete pipe, check out:
🔗 DPF Delete Pipe for 6.6L Duramax (2017-2024)