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MagnaFlow 4 x 9 Inch Oval Straight-Through Muffler 11219
This is a universal straight-through performance muffler built around a free-flowing perforated stainless steel core. It is designed to drop into a custom or existing 3-inch exhaust system to add MagnaFlow's deep exhaust tone while keeping exhaust gas moving with minimal restriction.
Fitment
| Application Type | Detail |
|---|---|
| Fitment Scope | Universal |
| Inlet Configuration | 3-inch center inlet |
| Outlet Configuration | 3-inch center outlet |
| Vehicle Types | Cars, trucks, and SUVs running a 3-inch exhaust pipe |
This is a universal muffler and does not target a specific year, make, or model. It fits any 3-inch center inlet and center outlet exhaust layout, and some cutting, welding, or adapting may be required to install it into a specific vehicle's existing exhaust piping.
Construction and Specifications
| Detail | Value |
|---|---|
| Brand | MagnaFlow |
| Part Number | 11219 |
| Muffler Type | Straight-Through |
| Body Shape | Oval |
| Body Material | Stainless steel |
| Body Finish | Satin |
| Body Dimensions | 4 in x 9 in x 14 in |
| Overall Length | 20 in |
| Inlet/Outlet Diameter | 3 in / 3 in |
| Inlet/Outlet Configuration | Center inlet, center outlet |
| Inlet and Outlet Quantity | 1 inlet, 1 outlet |
| Reversible Installation | Yes |
| Hardware Included | No |
This muffler uses a straight-through perforated stainless steel core wrapped in stainless steel mesh and packed with acoustic fiber fill. This construction keeps exhaust velocity high while controlling drone and delivering MagnaFlow's signature deep tone. The inlet and outlet are lap-joint welded to the body for a distortion-resistant, corrosion-resistant build, and the muffler can be installed in either flow direction since the internal core is fully reversible.
What's Included
- 1 MagnaFlow muffler
Gaskets, clamps, hangers, and mounting hardware are not included with the muffler.
Installation Instructions
- Determine the mounting location in the existing 3-inch exhaust system and confirm enough clearance for the 14-inch body and 20-inch overall length.
- Choose the flow orientation, since the muffler core is fully reversible and can be installed in either direction.
- Cut the existing exhaust pipe to accept the 3-inch center inlet and 3-inch center outlet.
- Fit the muffler to the pipe ends and weld or clamp the joints using exhaust hardware suited to a 3-inch pipe diameter.
- Install or reuse hangers to support the muffler and prevent stress on the surrounding piping.
- Start the engine and check every new joint and connection for exhaust leaks before returning the vehicle to normal use.
Warranty
This muffler is covered by MagnaFlow's limited lifetime construction warranty against defects in material and workmanship.
FAQ
What is the 11219?It is a MagnaFlow 4 x 9 inch oval straight-through performance muffler with a 3-inch center inlet and 3-inch center outlet.
Is this muffler vehicle-specific?No. It is a universal muffler built for any exhaust system using a 3-inch center inlet and center outlet configuration.
Are gaskets, clamps, or hangers included?No. Only the muffler body is included. Gaskets, clamps, and hangers are sold separately.
Can this muffler be installed in either flow direction?Yes. The straight-through core is fully reversible, so the muffler can be installed in either orientation.
What are the body dimensions of this muffler?The oval body measures 4 inches by 9 inches by 14 inches, with a 20-inch overall length.
What material is the muffler made from?Stainless steel with a satin finish, including a lap-joint welded inlet and outlet.
Does installation require cutting or welding?In most cases yes. As a universal muffler, it typically requires cutting the existing pipe and welding or clamping the new connections, so professional installation is recommended.
What is the warranty on this muffler?A limited lifetime warranty against defects in construction, material, and workmanship.
Prop 65 Warning
WARNING: This product can expose you to a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
MagnaFlow
MagnaFlow exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop MagnaFlow Street Series cat-back systems, axle-back exhausts, mufflers, direct-fit catalytic converters, resonators, and exhaust tips for Chevrolet Silverado, Ford F-150, RAM 1500, Jeep Wrangler and Gladiator, Nissan 350Z, Toyota Tacoma and Yaris, and Volkswagen and BMW platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 922 MagnaFlow SKUs across cat-back, axle-back, muffler, and catalytic converter categories. What This Brand Covers MagnaFlow is known for straight-through stainless steel mufflers, a signature deep tone, and one of the widest direct-fit vehicle applications in the aftermarket exhaust industry, including gas and diesel trucks, SUVs, muscle cars, and import platforms. Core Product Families Street Series cat-back systems deliver a bold, aggressive tone for d...
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