The MagnaFlow 13266 is an XL oval straight-through performance muffler with a 4x9x18in body and a reversible 2.5in/2.5in inlet/outlet layout. Its perforated stainless steel core with baffles and tuning gates delivers MagnaFlow's signature sound and dyno-proven performance. The universal design offers flexible placement within your exhaust system; professional installation is recommended. CNC precision robotic manufactured with durable corrosion-resistant stainless steel, backed by MagnaFlow's limited lifetime warranty.
| Type | Straight-through performance muffler |
| Body | Oval - 4x9x18in |
| Inlet/Outlet | 2.5in / 2.5in |
| Material | Stainless steel |
| Warranty | Limited lifetime |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988-1993 | Chevrolet | C1500 | Cheyenne |
| 1988-1992 | Chevrolet | C1500 | Scottsdale |
| 1988-1993 | Chevrolet | C1500 | Silverado |
| 1990-1993 | Chevrolet | C1500 | WT |
| 1988-1993 | Chevrolet | C2500 | Cheyenne |
| 1988-1992 | Chevrolet | C2500 | Scottsdale |
| 1988-1993 | Chevrolet | C2500 | Silverado |
| 1988-1993 | Chevrolet | K1500 | Cheyenne |
| 1988-1992 | Chevrolet | K1500 | Scottsdale |
| 1988-1993 | Chevrolet | K1500 | Silverado |
| 1991 | Chevrolet | K1500 | Sport |
| 1990-1993 | Chevrolet | K1500 | WT |
| 1988-1993 | Chevrolet | K2500 | Cheyenne |
| 1988-1992 | Chevrolet | K2500 | Scottsdale |
| 1988-1993 | Chevrolet | K2500 | Silverado |
| 1988-1993 | GMC | C1500 | Sierra |
| 1988-1993 | GMC | C1500 | Sierra SLE |
| 1988-1993 | GMC | C1500 | Sierra SLX |
| 1988-1993 | GMC | C2500 | Sierra |
| 1988-1993 | GMC | C2500 | Sierra SLE |
| 1988-1993 | GMC | C2500 | Sierra SLX |
| 1988-1993 | GMC | K1500 | Sierra |
| 1988-1993 | GMC | K1500 | Sierra SLE |
| 1988-1993 | GMC | K1500 | Sierra SLX |
| 1993 | GMC | K1500 | Sierra Sport |
| 1988-1993 | GMC | K2500 | Sierra |
| 1988-1993 | GMC | K2500 | Sierra SLE |
| 1988-1993 | GMC | K2500 | Sierra SLX |
