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Gibson Superflow 304 Stainless Steel 4 Inch Muffler 788040S
Part Number: GIB-788040S
Muffler, Superflow, 4.00 in. Inlet/4.00 in. Outlet, Stainless Steel, Polished, Each
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Estimated Ship Date: Nov 10, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
788040S
Part Type:
Product Line:
Summit Racing Part Number:
GIB-788040S
UPC:
677418020373
Muffler Material:
304 stainless steel
Inlet Diameter (in.):
4.00 in.
Outlet Diameter (in.):
4.00 in.
Inlet Quantity:
1
Outlet Quantity:
1
Electronic Valve:
No
Internal Construction:
Chambered
Inlet Location:
Center
Outlet Location:
Center
Case Shape:
Round
Reversible:
No
Muffler Color:
Polished
Case Exterior Length (in.):
24.00 in.
Case Outside Diameter (in.):
8.00 in.
Remanufactured:
No
Quantity:
Sold individually.
Gibson Superflow Mufflers
Gibson Superflow mufflers exceed the performance advantages provided by most other mufflers on the market. With their straight-through design, they're quieter in the cab, while still delivering that "big block" sound at the tailpipe. These exhausts are cost-effective, reliable, and provide more useable pulling power and torque. Superflow mufflers are available in steel and stainless steel—in a variety of shapes, and inlet/outlet diameters and quantities for universal and vehicle-specific applications.
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Some parts are not legal for use in California or other states with similar laws / regulations
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