As far as power and dependability are concerned, the 6.6L Duramax LBZ engine is very solid in pulling heavy loads. Gradually, however, this smoothness is disturbed by the Factory-installed EGR system. The EGR cooler and valve become clogged with soot and carbon deposits over the years, increasing intake temperature and running engine performance down and causing possible leakages. The LBZ EGR delete is a common option amongst owners who clean the intake system to allow their engine to breathe in clean air for better performance and least maintenance hassles. Such modifications are trendy with users who use their trucks for extreme, heavy work, towing, or off-road applications.

How LBZ EGR Delete Works
The LBZ EGR Delete works by removing the factory-installed EGR system and installing block-off plates and redirecting hoses to bypass the EGR. With a properly deleted EGR system, no exhaust gas enters the engine’s intake system, creating the conditions for the engine to inhale purest air. This, in turn, results in burning of pure fuel with lower intake temperature, easing out the stress on the turbocharger and intake system. This clean air coming into the engine without any recirculated EGR gas simply means that with the EGR gas eliminated, it will not be running smoother, better throttle response, and better driving.
Performance and Reliability Gains
Directly and indirectly, the performance is enhanced with several different issues that the EGR delete solves with the performance feel. The EGR cooler leaks and/or EGR valve malfunctions that are prevalent in many LBZs lead to coolant loss, engine overheating, and/or ingestion of scoop into the intake. Hence removing these items virtually eliminates their chance of ever failing, reduces maintenance work, and substantially increases the lifespan of the engine. It is also going to reduce much of the carbon build-up on the intake, thus leading to engines that are ever-cleaner and ever-more reliable.
Things to Think About Prior to the Installation of LBZ EGR Delete
Before attempting to perform the EGR delete on an LBZ engine, the owner must realize the consequences of the action. This may or may not affect emissions compliance, according to local regulations. And generally, the majority of trucks will need considerable engine tuning in reference to the elimination method in order to avoid experiencing deficient operation or generation of fault codes. Choosing a competent technician to undertake the installation is highly recommended to ensure proper sealing and, thereafter, the operational safety of all the parts attached to the modified system.
Conclusion:
For truck operators looking for good performance, cleaner operation, and overall reliability, an LBZ EGR delete is a great upgrade. It reroutes airflow back into the engine, thus reducing heat and carbon build-up and allowing the turbocharger and intake system to run much more smoothly. Be it for heavy towing, working, or just plain driving; this upgrade OSIAS will ensure that the LBZ Duramax is pushed to the extreme limit while reducing trouble from the factory EGR system.