2004.5-2005 LLY Duramax Cooler Upgrade Kit w/ Up Pipe
Revitalize your 2004.5-2005 GM 6.6L LLY Duramax with this high-performance Cooler Upgrade Kit. Specifically engineered to address the weaknesses of the factory LLY cooling and exhaust systems, this kit includes a high-flow Up Pipe to ensure your truck operates with maximum efficiency and reliability under any conditions.
Key Features:
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Enhanced Thermal Management: The LLY engine is known for running hot; this upgrade kit is designed to improve cooling efficiency, helping to prevent the overheating issues common in this year range.
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High-Flow Up Pipe: Replaces the restrictive stock up-pipe with a larger diameter, mandrel-bent version that improves exhaust flow, reduces backpressure, and speeds up turbo spool time.
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Lower EGTs: By optimizing the exhaust path, this kit effectively lowers Exhaust Gas Temperatures (EGTs), which is vital for engine longevity—especially when hauling heavy loads or running performance tunes.
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Rugged Construction: Every component is built from heavy-duty materials designed to withstand the high-stress environment of a diesel engine, offering a significant durability boost over OEM parts.
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Precision Fitment: Designed as a direct-fit solution for the 2004.5-2005 Chevrolet Silverado and GMC Sierra 2500/3500, making installation straightforward while utilizing existing mounting points.
Product Specifications:
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Compatibility: 2004.5-2005 Chevrolet Silverado & GMC Sierra 2500/3500 (6.6L LLY Duramax).
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Brand: Straight Pipe Solutions.
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Part Number: 800008-Y.
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Status: In Stock.