SKU: 38437446861

Stage 1 LLY Duramax Delete Kit (2004.5–2005) | EGR Competition Use Kit

Sale price$607.50 Regular price$675.00
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Stage 1 LLY Duramax Delete Kit (2004.5–2005) | EGR Competition Use KitLLY Duramax EFI Live Tuning Kit Complete Custom DSP5 Solution Built by PistonTwistin 2004. 52005 Duramax Take your LLY Duramax to the next level with our all in one EFI Live tuning kitdesigned to deliver maximum performance, improved drivability, and dependable towing power. Whether you're daily driving, towing heavy, or chasing horsepower, this plug and play custom tuning solution is built around your trucks exact needs. Why Choose PistonTwistin

LLY Duramax EFI Live Tuning Kit – Complete Custom DSP5 Solution

Built by PistonTwistin | 2004.5–2005 Duramax

Take your LLY Duramax to the next level with our all-in-one EFI Live tuning kit—designed to deliver maximum performance, improved drivability, and dependable towing power. Whether you're daily driving, towing heavy, or chasing horsepower, this plug-and-play custom tuning solution is built around your truck’s exact needs.


🔧 Why Choose PistonTwistin Custom Tuning?

Precision-Built EFI Live Calibration

Every tune is built from the ground up based on your truck’s modifications, usage, and goals. No canned or reused files.

Power On Demand

Experience faster throttle response, reduced turbo lag, and instant torque—exactly when you need it.

Fuel Economy Gains

Properly tuned power increases engine efficiency. Higher horsepower often means better MPG under conservative driving.

🚛 Serious Towing Confidence

Confidently haul loads over 15,000 lbs or dominate in sled pulls—we’ll tune you accordingly.

🎛️ Switch-On-The-Fly DSP5 Control

Switch between five custom power levels using your DSP5 knob. We can fully customize tune order and power output to match your driving habits.

🔄 Reversible & Safe

No permanent changes to your ECU—return to stock power at any time if needed.


⚙️ How It Works

  1. Place Your Order
    Choose between AutoCal V3, email delivery, or bench flashing.

  2. Submit Vehicle Details
    You’ll receive a secure digital form to provide info on your LLY’s year, mods, and intended use.

  3. Custom Tune Creation
    Our experienced calibration team builds your tune (1–3 business days) and verifies it against your setup.

  4. Tune Delivery Options

  • AutoCal V3: Ships pre-loaded, plug-and-play

  • Email Delivery: For customers with existing EFI Live devices

  • Bench Flashing: Mail us your ECM/TCM—we flash it and return it fast

Note: Highly modified setups may require datalogging for precision tuning.


📊 Power Levels & Use Case Guide

Mode RWHP Gain Best For
Stock Optimized +20 HP Clean daily driving
Heavy Tow +40 HP 15,000+ lbs hauling
Light Tow +60 HP Towing under 15,000 lbs
Street Performance +100 HP Daily use & responsive driving
Sport / Max Effort +120–200 HP Built trucks / racing

All five DSP5 tune levels can be tailored to your mods (intake, exhaust, injectors, CP3 conversion, etc.) and truck goals.


🔩 Recommended Performance Upgrades

Stage 1 Cold Air Intake

HSP Diesel 4" Cold Air Intake Bundle – 081-HSP

  • Increases airflow and throttle response

  • Faster turbo spool

  • Custom powder coat finish

  • 📦 Ships in 5–10 business days (custom colors: 15–20 days)


Exhaust Options

  • 4” MBRP Straight Pipe: Enhanced turbo whistle

  • 5” MBRP Straight Pipe: Deep, aggressive tone

  • Wehrli 3” Downpipe: Ceramic-coated, heat-wrapped, bolt-on upgrade


Common Questions

Is professional installation required?
No. AutoCal installs in under 10 minutes—no tools needed.

Can I use this on other Duramax models?
Yes. We support all Duramax generations, along with Cummins !

What is bench flashing?
For customers without a device or with locked ECMs, we offer professional bench flashing. Just send in your ECM/TCM—we’ll handle the rest.

What’s the benefit of better fuel filtration?
Protects your injectors and enhances long-term performance. Strongly recommended for tuned trucks.


Included With Your Order

  • 5x Custom DSP5 Tune Files

  • Fully personalized EFI Live tuning

  • Optional AutoCal V3 (pre-loaded, plug-and-play)

  • Lifetime support and retunes for future upgrades

  • Stock power reversion available anytime


🚀 Unlock Your LLY’s Full Potential

Join hundreds of LLY owners who trust PistonTwistin for proven performance, reliability, and long-term support. Whether you're hauling, racing, or commuting, our tuning gives you control and confidence behind the wheel.

📩 Have questions? Reach us at [email protected]

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 38437446861

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4.1 ★★★★★
Based on 8 reviews
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Minnesota Mom
Louisville, US
★★★★★ 4
Yes the suction works on stainless steel!!
Style: Contempo
I've been through many rag holders before including a magnetic one, which broke. But the suction on this sucker (pun intended) is top notch! It doesn't slide around or come off or slide to the bottom of the sink. It just stays put which is so unique for anything with suction cups. The only reason i am giving it 4 stars instead of 5 is that it is quite small. I wish it were a few inches longer so i could easily fit two rags or sponges in the holder. But i have to jam them in and its not pretty. So for the price, i think it should have been bigger. Still a good product because of the functionality of the suction cups.
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Reviewed in the United States on October 3, 2017
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Verified Purchase
Cate
Birmingham, US
★★★★★ 5
Absolutely Perfect
Style: Contempo
This is honestly one of my favorite kitchen purchases (which sounds silly) but it's AWESOME. There's a hole for my dish brush, which is so convenient and keeps it from draining anywhere else AND it has a nice ledge for my sponge. The suction was a little iffy at first, but once it really hunkered down, I've had it for a month and it hasn't fallen since the first day. I LOVE THIS
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2019
M
Verified Purchase
Max
Bozeman, US
★★★★★ 5
Great product once put on correctly.
Style: Contempo
When I first received it and placed it on, it continued to fall so I almost returned it. However, I found a method online that worked and it has not fallen since even after all the water and soap getting near it. I’ve placed it on a stainless steel sink so not sure if the method works on other surfaces. Clean the area with soap and water and then make sure there’s no soap residue. Make the water temperature hot and “heat up” both the steel surface and the suction. While it’s still wet, firmly place the suction and make sure it doesn’t move. That should do the trick!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2020
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Verified Purchase
NanaCA
Lowell, US
★★★★★ 3
Great item to make life more pleasant!
Style: Contempo
A tiny item that makes my life more lovely. No more yucky scrubber residue all over the counter edge, or soap leaking all over from a faulty handle. A sponge can be at hand and I can hang my cloth somewhere besides the top of the faucet. The suction cups stuck well now at first, and I can move it whenever I want. Not to big nor too small. Wire is firm and strong. Will edit if it doesn’t hold up but right now highly recommend! Edit to add: A bit disappointing that the suction cups are not reliable. Even after carefully cleaning the side of my deep sink with vinegar and washing the suction cups, they come loose about once a day. Giving them a hard push on seems to help, but not a cure. I revised the rating to average 3 stars. It really isn’t a problem in the sink.
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Reviewed in the United States on July 1, 2019
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Verified Purchase
Carolle
Natrona Heights, US
★★★★★ 5
Stays put and does the job
Style: Contempo
I hate clutter. That includes my sink area. This holds my oxo scrubber and a sponge with ease. It also lets everything drain nice so there is no issue with slime or smell that other caddies have. Looks nice and amazingly the suction cups work. So far the finish is holding up and for what it is, it does its job. Looks nice.
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Reviewed in the United States on November 16, 2019

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