Overview
The MagnaFlow 12586 is a satin stainless steel muffler built with an offset inlet, a centered outlet, and 2.5-inch inlet and outlet tubes. It is a straight-through design for exhaust systems that use a universal fit approach.
The body is 100% stainless steel with lap-joint welds, and the straight-through core is perforated with stainless mesh wrap. Acoustical fiber fill packed inside helps keep the sound deep and smooth over time. No vehicle is attached, so the offset inlet must line up with the pipe you plan to join.
Key features
- Offset inlet and centered outlet
- 100% stainless steel with lap-joint welds
- Perforated straight-through core
- Stainless mesh wrap and dense acoustical fill
- Lifetime Warranty backing from MagnaFlow
Signs of a worn muffler
Most muffler wear shows up as sound, smell or appearance changes. A louder tone, a rattle at idle, or a hissing leak near a joint all point to a problem. Look at the body for rust, pinholes and seams that have opened, since stainless resists rust but can still crack at welds under stress. Acoustical packing wears over time, which can change the tone even when the shell looks fine.
Because a straight-through core runs the full length of the body, internal damage can be hard to see from outside. Tap the body lightly and listen for loose parts. If the exhaust smells of fuel or fumes near the cabin, have it inspected promptly, as the cause may be a leak upstream or at the muffler.
- Listen for rattles and changes in tone
- Look for cracked or opened welds
- Check for leaks near the joints
Specifications
| Brand | MagnaFlow Exhaust |
|---|---|
| Part number | 12586 |
| UPC | 841380001177 |
| Finish | Satin |
| Material | 100% stainless steel |
| Muffler type | Straight through |
| Inlet location | Offset |
| Outlet location | Centered |
| Tube size (inlet/outlet) | 2.5 inches / 2.5 inches |
| Fitment listing | Universal fit |
| Warranty | Lifetime |
Vehicle fitment
The 12586 has no listed vehicles. Universal fit means it is not matched to a model year, so the 2.5-inch tubes and offset inlet are the points to compare with your current exhaust.
Vehicle fit should be checked against your year, model and trim before buying.
What’s included
Check the package contents for clamps, hangers and gaskets before starting work.
