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01-07 GM 6.6L Duramax 4" Diamond Eye Aluminized 4 Bolt Adapter Plate
$82.89
- Part Number: 321045
- Est. Ship Time: Contact To Confirm Availability
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This is the pipe that is between the downpipe and muffler.
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4001 - FOR 2001, 2002, 2003, 2004, 2005, 2006 & EARLY 2007 - CHEVY/GMC 6.6L DURAMAX DIESEL 2500/3500 - PERFORMANCE DIESEL EXHAUST - HIG..
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PDP Pick
Airflow Rating
Cotton, Cleanable: Flows 47.8% better than the Stock Intake
Dry: Flows 46.7% Better than the Stock Intake
Efficiency Rating ..
Starting From $349.00
Applications:
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Backordered with No ETA (Updated on 9/12/2025)
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Allow a 1 week lead time!
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SoCal Diesel is a company known for providing high-performance diesel parts and accessories, particularly for trucks and heavy-duty vehicles. They foc..
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