FITMENT
- 2011-2015 6.6L Chevy GMC Duramax LML 2500 HD 3500 HD Diesel.
DESCRIPTION
Product Overview
- The factory intake air horn and EGR system on Duramax LML engines are designed to meet emissions requirements, but the OEM intake bridge features narrowed internal passages and sharp bends that can restrict airflow efficiency. At the same time, the factory EGR system recirculates exhaust gases back into the intake tract.
- Over time, soot from the EGR system can mix with oil vapor inside the intake system, creating carbon buildup that may reduce airflow, affect engine efficiency, and increase maintenance concerns.
Key Features
- Precision Direct Fitment: CNC-machined mounting flanges provide accurate alignment and a secure seal at the intake manifold, helping prevent potential boost leaks during operation.
- Cleaner Intake System Design: EGR delete simplify the factory EGR system and help reduce soot accumulation inside the intake tract, supporting a cleaner intake environment.
- Improved Throttle Response & Turbo Efficiency: By reducing intake restriction and turbulence, this upgrade helps optimize airflow delivery and support improved turbocharger response under load.
- Optimized Fresh Air Intake: Removing exhaust gas recirculation helps maintain a cleaner air supply to the engine, supporting more consistent intake airflow and combustion efficiency.
FAQ
Q: What is the benefit of replacing the stock intake bridge on a Duramax LML?
A: The stock LML intake bridge is heavily necked down to clear emissions components, creating a bottleneck right where air enters the engine. Upgrading to a High-Flow Intake Elbow Bridge increases air volume, smoothes out turbulence, and improves boost delivery to the cylinders.
Q: Will this intake elbow hold up under high boost pressure without leaking?
A: Yes. The intake bridge features precision CNC-machined flanges and heavy-wall aluminum construction, built to withstand high boost pressures without flexing, cracking, or leaking at the manifold interface.
Q: Why combine the High-Flow Intake Bridge with an EGR Delete?
A: Installing the intake bridge without deleting the EGR means hot, dirty exhaust soot would still contaminate your new intake. Deleting the EGR at the same time keeps the high-flow intake bridge completely dry and pure, ensuring long-term airflow performance.
Q: Does this high-flow intake bridge feature a port for the factory MAP sensor?
A: Yes. The intake elbow bridge comes pre-drilled and tapped with factory-spec sensor ports (or includes NPT ports for aftermarket boost gauges/N2O injectors), ensuring your OEM MAP sensor bolts on seamlessly without custom modification.
