
- Direct fit for 2017-2019 Chevrolet/GMC 6.6L Duramax L5P
- 3.0" mandrel-bent aluminum polished pipes eliminate restrictive bends
- Up to 55% less restrictive than stock piping
- Includes new quick-disconnect O-ring and spring clip
- Hot-side eliminates stock resonator for maximum flow
- Eliminates failure-prone stock throttle valve connector
- Retains temp sensor harness mount for safe and secure wire routing
- Internal bead roll ensures secure connection between coupler and throttle valve
- CNC-machined quick-disconnect ensures precise, leak-free fit
- Additional bungs can be drilled and tapped for sensors
- Requires no additional tuning
- Includes Mishimoto silicone boots with DuraCore™ technology and Mishimoto constant-tension T-bolt clamps
- Available in polished or wrinkle-black powder coated finish

Improve the power and efficiency of your 2017-2019 Chevrolet/GMC 6.6L Duramax L5P with our Mishimoto intercooler pipe and boot kit. The factory L5P intercooler pipes are a measly 2.5" diameter that chokes the engine, while tight bends and a resonator on the hot side create even more restriction.
The Mishimoto intercooler pipes are 3" in diameter throughout with smooth transitions to significantly increase airflow, resulting in more power potential. Our hot-side pipe also eliminates the stock resonator for maximum flow. Combined, the Mishimoto intercooler pipes are up to 55% less restrictive than stock.
Both the hot-side and cold-side utilize a two-piece design for ease of install. To connect the pipes to our Duramax, this kit also includes our silicone boots with DuraCore™ technology. Mishimoto DuraCore™ technology is the synthetic material that comprises the innermost layer of all Mishimoto silicone diesel boots. Compared to normal silicone, DuraCore™ provides superior resistance to heat, pressure, fuel, and oil. This effectively increases the life of our boots by preventing leaks and blowouts.
To add even more reliability, this kit includes [...]
- Direct fit for 2017-2019 Chevrolet/GMC 6.6L Duramax L5P
- 3.0" mandrel-bent aluminum polished pipes eliminate restrictive bends
- Up to 55% less restrictive than stock piping
- Includes new quick-disconnect O-ring and spring clip
- Hot-side eliminates stock resonator for maximum flow
- Eliminates failure-prone stock throttle valve connector
- Retains temp sensor harness mount for safe and secure wire routing
- Internal bead roll ensures secure connection between coupler and throttle valve
- CNC-machined quick-disconnect ensures precise, leak-free fit
- Additional bungs can be drilled and tapped for sensors
- Requires no additional tuning
- Includes Mishimoto silicone boots with DuraCore™ technology and Mishimoto constant-tension T-bolt clamps
- Available in polished or wrinkle-black powder coated finish