Overview
The MagnaFlow 12279 is a satin stainless steel muffler with 3-inch inlet and outlet tubes and centered inlet and outlet locations. Its body is 100% stainless steel, lap-joint welded for rugged, solid construction. The straight-through design is built around a 3-inch bore.
The internals are a perforated stainless steel core, a stainless mesh wrap and a dense acoustical fiber fill. The muffler is universal fit with no vehicle named, so the 3-inch tube size is the detail to match to your exhaust.
Key features
- Centered inlet and centered outlet
- Straight-through perforated stainless steel core
- Stainless mesh wrap around the core
- Acoustical fiber fill packed tightly inside
- Lifetime Warranty from MagnaFlow
Things to check
The 3-inch tube size and centered ports are the main checks for this muffler. Measure the existing pipe and confirm it lines up with the centered inlet before ordering. Because the core is packed with fiber, the tone may shift as the packing ages; that change is normal wear rather than a fitting problem.
Stainless construction holds up in wet and salty conditions, but clamps and hangers can still corrode or stretch. Loose hangers let the body contact the frame, which can cause rattles and eventually damage the shell. Tighten fasteners when the exhaust is cool, and replace any hanger that has cracked or lost its shape.
- Measure pipe diameter at both ends
- Check that centered ports line up with the pipe
- Listen for rattles near the body
Specifications
| Brand | MagnaFlow Exhaust |
|---|---|
| Part number | 12279 |
| UPC | 841380000996 |
| Finish | Satin |
| Material | 100% stainless steel |
| Muffler type | Straight through |
| Inlet location | Centered |
| Outlet location | Centered |
| Tube size (inlet/outlet) | 3 inches / 3 inches |
| Fitment listing | Universal fit |
| Warranty | Lifetime |
Vehicle fitment
The 12279 has no specific vehicle attached. As a universal fit part, its 3-inch tubes and centered ports must match the exhaust it joins, and no model year is named.
Verify fit for your year, model and trim before placing an order.
What’s included
Check the box for hangers, clamps and gaskets before work begins.
