The MagnaFlow XL 4 X 9in. Oval Multi-Chamber Performance Exhaust Muffler 13256 features a straight-through, weight-optimized reversible design with a perforated stainless steel core featuring baffles and tuning gates, enabling it to deliver the powerful signature sound and dyno-proven performance that's made MagnaFlow a household name. Muffler 13256's oval-shaped, 4x9x18in. body and universal 2.5/2.5in. diameter inlet/outlet layout enables flexible installation options to match the spacing requirements of your vehicle. Professional installation is highly recommended. 13256 is produced using advanced CNC precision robotic manufacturing techniques and features durable, corrosion resistant stainless-steel construction, all backed by MagnaFlow's limited lifetime warranty.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000-2001 | Chevrolet | S10 | Base |
| 2000-2001 | Chevrolet | S10 | LS |
| 2000-2001 | Chevrolet | S10 | ZR2 |
| 2000 | GMC | Sonoma | SL |
| 2000 | GMC | Sonoma | SLE |
| 2000 | GMC | Sonoma | SLS |
Most items ship directly from authorized distributors. Lead times vary by brand and availability.
Returns are permitted within 30 days of receiving your order under specific conditions. For more information, view our Return & Refund Policy
Professional installation available at our Metro Atlanta facility. Contact us to schedule your build.

