FITMENT
- 2004.5-2005 6.6L Chevrolet Silverado Duramax LLY 2500HD / 3500 HD.
- 2004.5-2005 6.6L GMC Sierra Duramax LLY 2500HD / 3500HD.
DESCRIPTION
Product Overview
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Factory 6.6L Duramax LLY engines can suffer from intake contamination caused by the EGR and CCV systems. The EGR system recirculates soot into the intake, while the CCV introduces oil vapor into the turbo inlet, contributing to carbon buildup and reduced airflow efficiency.
- When soot and oil vapor combine, they can form carbon sludge inside the intake system. The LLY CCV Reroute & EGR Delete Combo Kit helps eliminate these contamination sources, keeping the turbo, intercooler, and intake system cleaner.
Key Features
- Complete EGR Cooler & Valve Removal: Eliminates the heavy factory EGR valve assembly and bypasses the cooler to prevent internal coolant leaks.
- Prevents Carbon Sludge Buildup: Stopping both oil and soot keeps turbo compressor wheel, intercooler lines, and intake runners clean and dry.
- Lower EGTs & Better Engine Efficiency: Removing hot exhaust gas recirculation lowers combustion temperatures and improves overall engine breathing.
- Dual-Source Intake Protection: Permanently blocks abrasive exhaust soot and redirects oily crankcase blow-by vapors away from your intake system.
FAQ
Q: Why should I install both an EGR Delete and a CCV Reroute at the same time on an LLY?
A: The CCV system introduces oil vapor while the EGR system recirculates soot, which can combine to form carbon buildup inside the intake. Installing both helps reduce contamination and keeps the intake system cleaner.
Q: Does this kit include the 3" intake tube or passenger-side up-pipe?
A: Yes. This kit includes the high-flow intake tube to replace the restrictive factory intake bridge, it does not include the passenger-side up-pipe. For a complete airflow upgrade with the up-pipe replacement,
Q: Does this kit require cutting or modifying factory coolant lines?
A: No. The kit includes a pre-shaped high-temperature silicone bypass hose that connects directly to the factory coolant fittings, allowing for a clean EGR cooler bypass without cutting the original lines.
Q: Can I install this EGR and CCV kit with the turbo still in place?
A: Yes. All components are designed to be installed while the turbocharger remains mounted on the engine block. However, working clearance near the firewall is tight, so using swivel sockets and long extensions is recommended.
