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The Gibson SFT Superflow Muffler produces powerful big block sound at the tailpipe while delivering more usable pulling power and torque for trucks SUVs and cars. This universal stainless steel muffler fits 3 inch exhaust systems and stays quieter inside the cab than other aftermarket mufflers. Its baffled and chambered design ensures unrestricted flow and long-lasting performance with all welded construction.
Key Features
- Stainless Steel Build: T304 stainless with all welded construction resists corrosion and damage.
- Big Block Sound: Aggressive deep exhaust tone increases torque and pulling power at the tailpipe.
- Quiet Interior: Engineered to reduce cabin noise levels compared to typical aftermarket mufflers.
- Cut and clamp or weld into existing 3 inch exhaust piping for secure connection.
- Precision baffled engineering balances flow sound and durability.
- Made from T304 stainless steel with fully welded seams for maximum strength rust resistance and heat tolerance.
Fitment
| Fitment Basis | Universal by exact exhaust dimensions and interface |
|---|---|
| Required Verification | Diameter, length, orientation, attachment method, finish, and available clearance |
Specifications
| Manufacturer | Gibson |
|---|---|
| Manufacturer Part Number | 420887 |
| Product Type | Muffler |
| Fitment Type | Universal by exact dimensions and interface |
| Muffler Dimension | 8 in. Round Body, 3.00 in. Center Inlet, 3.00 in. Center Outlet, L-24 in. |
| Warranty | Lifetime Limited Warranty |
What's Included
- One new Gibson muffler in the exact configuration identified by manufacturer part number 420887
- Hardware and accessories only when supplied for this exact part number
About Gibson
Gibson develops vehicle-specific and universal exhaust components for street, truck, SUV, and performance applications. Selection and installation requirements remain exact-part-number specific.
Related Gibson Products
- Gibson SFT Superflow Dual/Center Round Muffler - 8x24in/3in Inlet/4in Outlet - Stainless
- Gibson SFT Superflow Center/Dual Round Muffler - 7x24in/3in Inlet/2.5in Outlet - Stainless
- Gibson SFT Superflow Offset/Dual Round Muffler - 8x24in/3in Inlet/2.25in Outlet - Stainless
Browse the Gibson collection for related exhaust systems and components.
Frequently Asked Questions
Which vehicles fit Gibson GIB420887?
Gibson GIB420887 is listed for a universal application selected by the published dimensions and connection details. Confirm the exact engine, trim, drivetrain, body or cab configuration, exhaust layout, and every application note before ordering.
What should I verify before ordering Gibson GIB420887?
Match the exact part number, system type, material, finish, tubing and connection diameters, exhaust configuration, package contents, and current manufacturer notes shown in this listing.
What should be checked when installing Gibson GIB420887?
Verify all interfaces, hanger positions, tip and body clearances, clamp or fastener torque, leak-free operation, and local emissions requirements. Reinspect the system after its first heat cycle.
Installation Instructions
Follow the current Gibson instructions and vehicle service information for this exact part number. Work on a cool exhaust, support the vehicle safely, confirm all interfaces and clearances, align the system before final tightening, test for leaks, and inspect the installation again after the first heat cycle.
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