Overview
The MagnaFlow 11386 is a satin stainless steel muffler with dual offset inlet and dual offset outlet locations and 2.5-inch tubes. It is built from 100% stainless steel, with lap-joint welds intended to hold up in demanding conditions.
Inside, a straight-through perforated stainless steel core runs through stainless mesh wrap and acoustical fiber fill. The dense packing is intended to keep the tone smooth and deep without sound degradation over time. Because it is universal fit, its port layout and tube size must suit your exhaust before fitting.
Key features
- 100% stainless steel body, lap-joint welded for solid construction
- Free-flowing, straight-through perforated stainless steel core
- Stainless mesh wrap over the core
- Acoustical fiber fill packed densely for a smooth, deep tone
- Backed by a MagnaFlow Lifetime Warranty
Dual offset ports explained
Dual offset ports place both the inlet and outlet away from the centerline of the body. That layout can suit a pipe that runs down one side, but it also means the muffler may sit at an angle once it is fitted. Mark the port positions on the pipe before cutting so the connections line up without forcing.
Mounting points matter more with offset ports, because the body can twist slightly under its own weight. Use hangers that hold the muffler in a level, relaxed position, and avoid bending the pipe to reach the connection. A small misalignment can crack a weld over time, so check the angle again after the first few drives.
Look at the joints every few oil changes. Listen for new buzzing or hissing, watch for black soot near the seams and replace worn rubber hangers before they stretch or tear. Exhaust that is well supported tends to stay quieter for longer.
Specifications
| Brand | MagnaFlow Exhaust |
|---|---|
| Part number | 11386 |
| UPC | 841380000729 |
| Finish | Satin |
| Material | 100% stainless steel |
| Muffler type | Straight through |
| Inlet location | Dual offset |
| Outlet location | Dual offset |
| Tube size (inlet/outlet) | 2.5 inches / 2.5 inches |
| Fitment listing | Universal fit |
| Warranty | Lifetime |
Vehicle fitment
No specific vehicle is named for the 11386. It is sold as universal fit, which means it is not matched to a year, make or model. Check the 2.5-inch tube size and the dual offset ports against your existing pipe.
No vehicle is named for the 11386. Confirm fit for your vehicle’s year, model and trim before ordering, and compare the 2.5-inch tube size and dual offset ports with your pipe.
What’s included
Check the package contents for hangers, clamps and gaskets when it arrives.
