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MBRP
MBRP 4" Aluminized Downpipe Back Exhaust - No Muffler LB7 Duramax 2001-2004
- Performance Series Exhaust System
- 2001-04 GM 2500/3500
- 6.6L Duramax Diesel
- Ext/Crew Cab (Classic) - Regular Cab requires adapter (sold separately)
- Aluminized Steel, No Muffler
- Down Pipe Back Kit
- 4'' Single Side Outlet
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