David Schaefer’s 2015 GMC 2500HD Denali, known as "Time Bomb," is a remarkable achievement in the world of diesel performance. With a stunning 700 horsepower while maintaining full emissions compliance, this truck is a testament to what can be accomplished with thoughtful engineering and high-quality components. Let’s break down this comprehensive build, exploring the features that make it special and how they come together to create a never before achieved driving experience.
Emissions Equipped, Twin Turbo, 2015 LML Duramax Build
Now that the LML platform has been around for almost 10 years(how?!), it's no shock seeing these models sporting a slew of modifications. This truck we are showcasing, it is built for a specific type of driver. That's the thing with your truck. You build it to how you drive your truck. That's exactly how this LML's driver approached it. Now let's take a look at exactly what this build entails.
Jamie Kerley, the VP of Duramxtuner, picked up this 2015 LML with 39,000 miles on and has been behind the wheel of the truck since. This GMC Sierra 2500 HD came completely stock with the emissions still intact (stock exhaust, functioning EGR & DEF). From the exterior, this looks like just any LML. Looks can be deceiving though….
520 RWHP TUNE ONLY LML DURAMAX:
The 2011 - 2016 LML Duramax came rated at 395 horsepower and 765 ft/lbs of torque. That seemed like an amazing amount of power when this model was first released but these days it is dwarfed by the available power of brand new trucks.
Furthermore, that whopping 395 HP is a peak power rating, meaning that you probably won't produce that much power during normal operations. In fact, many owners complain that the power delivery of the stock tune is too soft. This is why custom tuning is so important for the LML Duramax.
Here are some of the things tuning your LML can help with:
- Increased Peak Horse Power
- Improved Shift Quality
- LML Dead Pedal Resolution
Ever wonder what you need to push your stock truck to its limit? We know the answer, and we created this article for you. For 600-640 RWHP you will need to keep in mind all the supporting modifications you need to maintain reliability.
Custom tuning is going to ask your truck to perform at a higher level. The same goes for upgrading your turbo, transmission, fuel system or any other performance orientate component. The best way to maintain a moderate level of reliability while upgrading is to address these issues once and do it right!
Here is the list of what you need to make a reliable 600+ RWHP LML with a DPF still on it:
- EZ Lynk AutoAgent 2.0 w/ Support Pack & LSP5 Switch
- LML Stealth 64 Turbo
- 10mm Cp4 Exergy Stroker Pump
- DT550 Built Transmission
- S&B Intake
- Tie Rod Sleeves
- Traction Bars
- Fass 165 Lift Pump
- Beans Fuel Tank Sump Kit
- Edge Insight CTS2 Monitor
- EGT Probe
2011-2016 Durmax HP Recipe:
Your 2011 - 2016 GM Diesel is powered by the LML Duramax. This engine is capable on monstrous amounts of power while retaining some reliability, if you know what you are doing.
No, it's not just for drag racers and sled pullers. This level of power isn't even just for kids. 600HP is fun for the whole family. You can have a truck that is reliable and still capable of having a little fun when you want it to. That is why we put this simple list of 5 things you need to make 600HP and keep your truck on the road.
Here are some other articles about LML Performance: