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Gibson Superflow Mufflers – 421887 3in Offset in / 3in Ctr out – 24in case


SKU: GIB-421887 Categories: ,


Muffler, Superflow, Offset 3.00 in. Inlet/Outlet, Round 24 in. Case, Polished Stainless Steel, Each


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.


Brand: Gibson Performance Exhaust
Manufacturer’s Part Number: 421887
Part Type: Mufflers
Product Line: Gibson Superflow Mufflers
Muffler Material: 304 stainless steel
Case Shape: Round
Inlet Diameter (in.): 3.000 in.
Inlet Quantity: One
Inlet Location: Offset
Outlet Diameter (in.): 3.000 in.
Outlet Quantity: 1
Outlet Location: Offset
Reversible: No
Internal Construction: Chambered
Muffler Finish: Polished
Case Exterior Length (in.): 24.000 in.
Case Outside Diameter (in.): 8.000 in.
Overall Length (in.): 28.000 in.
Outlet Style: Standard, without tip
Quantity: Sold individually.


Gibson Performance, Inc. warrants its products to be free from defects in materials in workmanship. Aluminized steel products are warranted for 90 days from the date of purchase, while stainless steel products carry a lifetime warranty against rust-through and corrosion. Gibson will repair or replace any defective part. This limited warranty applies to the original purchaser only and does not cover any damage or defects resulting from collision or accident, improper installation, blow-out by “backfire,” off-road use, racing, road hazards, incorrect timing or tuning, external heat wraps, non-factory supercharger, turbocharger or nitrous oxide systems, internal rust, rust-through, or corrosion (except stainless steel products). Any damage to the cosmetic appearance of chrome plating or paint, other than defects in material and workmanship, is not covered under this warranty.