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Product Information

Product Details
Part No. 39378
Warranty Details (LIMITED LIFETIME REPLACEMENT)
Give your Chevrolet Silverado/GMC Sierra 2500's exhaust system an upgrade with a DynoMax Ultra Flo welded 4-in. single cat-back exhaust system. Features a DynoMax Ultra Flo welded muffler that features Continuous Roving Fiberglass (CRF) to absorb unwanted interior resonance while maintaining a deep performance tone.

Product Features:
  • COMPATIBILITY -- Designed for 2001-2007 Chevrolet Silverado 2500 and GMC Sierra 2500; 153-in. wheelbase; see product information for compatibility and engine specs
  • COMPLETE SOLUTION -- Includes DynoMax Ultra Flo welded muffler, pipes, tip and clamps
  • EASY TO INSTALL -- Direct-fit bolt-on pre-assembled solution with welded hangers, pipes and clamps for easy installation that doesnt require specialized fabrication and/or welding
  • EASY TO INSTALL -- Direct-fit bolt-on pre-assembled solution with welded hangers, pipes and clamps for easy installation that doesnt require specialized fabrication and/or welding
  • IMPROVED FLOW CAPACITY -- 4-in. Stainless-steel tubing with mandrel bends improves flow capacity over traditional bends while increased pipe diameter from OE sizes increases flow and power
  • SUPERIOR PERFORMANCE -- Straight-through design ensures unrestricted exhaust flow and reduces back pressure; dyno proven to flow up to 2,200 SCFM
  • PREMIUM ACOUSTIC CONTROL -- Exclusive Continuous Roving Fiberglass (CRF) technology absorbs unwanted interior resonance while maintaining a deep performance tone
  • ENGINEERED TO LAST -- Muffler features stainless-steel construction with a micro-finish for lifelong protectionand 100% welded design for maximum durability
  • ENGINEERED TO LAST -- Muffler features stainless-steel construction with a micro-finish for lifelong protectionand 100% welded design for maximum durability
  • NOTES -- 5-in. Outlet double wall, buffed and polished stainless-steel slant cut tip; 4-in. straight cut tail pipe
Specifications
Body Finish:
Natural

Body Length:
22 in

Grade Type:
Performance

Inlet Quantity:
1

Mounting Hardware Included:
Yes

Muffler Material:
Stainless Steel

Muffler Quantity:
1

Outlet Quantity:
1

Oxygen Sensor Bung Included:
No

Pipe Diameter:
4 in

Pipe Material:
Stainless Steel

System Type:
Cat Back

System Type:
Single

Tip Shape:
Round
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