Product Description
Diamond Eye 321056 – 3" Aluminized Turbo Direct Downpipe for 2004.5–2010 Chevy/GMC 6.6L Duramax
Upgrade your Duramax diesel exhaust system with the Diamond Eye Performance 321056 Turbo Direct Downpipe. Designed for 2004.5–2010 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks equipped with the 6.6L LLY, LBZ, or LMM Duramax engine, this 3-inch downpipe provides improved exhaust flow from the turbocharger.
Constructed from aluminized steel, the pipe features mandrel-bent tubing and precision-machined connections for proper fitment. Special thermal-resistant wrapping helps manage exhaust heat and reduce exhaust gas temperatures (EGTs).
Product Features:
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3-inch aluminized steel construction
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Mandrel-bent tubing for smoother exhaust flow
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CNC-machined end connections
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Thermal-resistant heat wrapping
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Designed to replace the factory turbo downpipe
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Uses factory-style band clamp connections
Vehicle Fitment:
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2004.5–2010 Chevrolet Silverado 2500HD / 3500
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2004.5–2010 GMC Sierra 2500HD / 3500
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6.6L Duramax diesel engines: LLY, LBZ, and LMM
Specifications:
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Manufacturer: Diamond Eye Performance
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Part Number: 321056
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UPC: 841963115062
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Pipe Diameter: 3 inches
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Material: Aluminized Steel
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Product Type: Turbo Direct Downpipe
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CARB Executive Order: D-778
Installation Notes: Factory exhaust clamps are reused during
