Performance Intercooler, fits Chevrolet/GMC 6.6L Duramax 2017-2019
MISHI POINTS INFO
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- Direct fit for 2017-2019 Chevrolet/GMC 6.6L Duramax L5P
- Reduces restriction by over 64-percent over stock intercooler
- 68mm-thick bar-and-plate core is 70-percent thicker than stock for maximum cooling
- Larger inlet and outlet reduce restriction for improved flow
- Robust cast-aluminum end tanks resist cracking under high heat and pressure
- Includes cold-side adapter pipe with DuraCore boot and constant-tension T-bolt clamps
- Adapter pipe includes 2 bungs that can be drilled and tapped for sensors or water/meth injection
- Available in durable silver or black powder-coated finish
- Patent Pending
- Mishimoto Lifetime Warranty
Installation Difficulty: Hard
- Direct fit for 2017-2019 Chevrolet/GMC 6.6L Duramax L5P
- Reduces restriction by over 64-percent over stock intercooler
- 68mm-thick bar-and-plate core is 70-percent thicker than stock for maximum cooling
- Larger inlet and outlet reduce restriction for improved flow
- Robust cast-aluminum end tanks resist cracking under high heat and pressure
- Includes cold-side adapter pipe with DuraCore boot and constant-tension T-bolt clamps
- Adapter pipe includes 2 bungs that can be drilled and tapped for sensors or water/meth injection
- Available in durable silver or black powder-coated finish
- Patent Pending
- Mishimoto Lifetime Warranty
Product Description
High intake temperatures can reduce performance and potentially cause engine damage if left unchecked. Protect your investment by upgrading to the Mishimoto 6.6L Duramax L5P performance intercooler. This Duramax intercooler is precision engineered with durable cast-aluminum end tanks that resist cracking under high temperatures and boost pressures.
The massive 68mm-thick bar-and-plate core is 70% thicker than stock and is designed for maximum cooling. In addition, the larger core reduces restriction by over 64% compared to the stock intercooler. We've also increased the size of the intercooler inlet and outlet by 6mm and 12mm, respectively, to improve flow even more.
Included with this intercooler is an adapter cold-side pipe with DuraCore™ boot and constant-tension T-bolt clamps. Two additional bungs on the adapter pipe can be drilled and tapped for sensors or water/meth injection. Offered in Sleek Silver or Stealth Black powder-coated finish, the Mishimoto 6.6L Duramax intercooler, like all our Duramax performance parts, is protected by our signature Mishimoto Lifetime Warranty.
TECH SPECS
| Applications | GMC Sierra 2500HD V8 (6.6L Diesel) 2017-2019 GMC Sierra 3500HD V8 (6.6L Diesel) 2017-2019 Chevrolet Silverado 2500HD V8 (6.6L Diesel) 2017-2019 Chevrolet Silverado 3500HD V8 (6.6L Diesel) 2017-2019 |
|---|---|
| Engine Codes | L5P |
| Chassis Codes | GMT K2 |
| Note | Some trimming of the fan shroud may be required for installation. |
| Overall Length (in) | 45.8 |
| Overall Height (in) | 23.85 |
| Overall Width (in) | 4.92 |
| Core Type | Bar-and-Plate |
| Core Thickness (in) | 2.67 |
| Core Length (in) | 22 |
| Core Height (in) | 12 |
| Inlet (in) | 3 |
| Outlet (in) | 3.25 |
| Installation Notes | 27 in-lbs (3NM) recommended for all T-bolt and constant-tension T-bolt clamps. These clamps have an operating range of 18-35 in-lbs (2-4NM). Do not exceed the maximum torque rating of 35 in-lbs (4NM). |
Downloads
Purchase Includes
(1) Cold-Side Intercooler Pipe Adapter
(1) Cold-Side Intercooler Boot
(3) Constant-Tension T-Bolt Clamp
(2) Intercooler Core Spacer
(2) M8 X 1.25 X 20mm Bolt
(2) M8 X 1.25 X 35mm Bolt
(2) M8 X 1.25 X 60mm Bolt
(6) M8 Washer
Mishimoto Lifetime Warranty
Note:
Some trimming of the fan shroud may be required for installation.After piloting any performance machine, the same question always arises, "How can I squeeze more performance out of this engine?" Whether it's a low-slung sports car, hot-hatch, or diesel powerhouse, the sentiment remains. The L5P 6.6L Duramax powering the 2017-2019 HD Silverados and Sierras are no exception. They're not destined for corner carving, but they perform in their own right. The Duramax holds a payload of power potential, with the intercooler being the key to it all.
In our last post, we installed our prototype to
Performance is in the eye of the beholder. When the term 'performance vehicle' is uttered, thoughts primarily drift to low-slung, no-frills sports cars. Creature comforts were all sacrificed to the gods of speed, and practicality wasn't even considered. However, every vehicle performs in its own regard, including the 6.6L L5P Duramax powered Silverado and Sierras. These are performance machines. Sure, a Porsche 911 GT3 can lay down staggering lap times, but when was the last time you saw a 911 setting speed records while also towing a trailer and hauling the support team in absolute comfort. Its performance that's usable every single day. While impressive straight from the factory, these L5P power factories could still benefit from a bump in performance, specifically in the intercooling department.
Before we can even think about our new design, we need to look at what GM included from the factory. A thorough examination of the stock layout gives us cues and a clear path forward on our
When it comes to trucks like the L5P Duramax powered Silverado and Sierra, 'tough' is generally the adjective used to describe them. Often, we see these trucks portrayed as do-anything utilitarian machines. They're traversing a dusty job site or towing a trailer loaded with machinery up a hill without breaking a sweat. The bed takes a pounding from payloads or toolboxes being dropped in without a care. Regardless of how or where you use your L5P Duramax, the mind-boggling performance these trucks possess is overshadowed by how "robust" they are. The massive torque figures and surprising 0-60 times are not lost on us here at Mishimoto. We're here to celebrate the speed of the Duramax and even improve on it.
The L5P Silverado and Sierra HD are the latest in a long line of GM turbodiesel torque machines. However, the intercooling system could still use an upgrade, specifically the piping. Before we could fully update the intercooler piping system in the Duramax, we needed to perform a
Frequently Asked Questions
