The MagnaFlow 12588 is an XL oval straight-through performance muffler with a brushed-finish 5x11x22in body and a 2.5in dual inlet / 3in center outlet (Center/Dual) layout. Its free-flowing perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill delivers MagnaFlow's signature deep exhaust note. The universal design allows 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 - 5x11x22in - brushed finish |
| Inlet/Outlet | 2.5in dual in / 3in center out |
| Configuration | Center/Dual |
| Material | Stainless steel |
| Part Number | 12588 |
| Warranty | Limited lifetime |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006-2014 | Chevrolet | Impala | LS |
| 2006-2014 | Chevrolet | Impala | LT |
| 2006-2014 | Chevrolet | Impala | LTZ |
| 2006-2007 | Chevrolet | Impala | Police |
| 2006-2014 | Chevrolet | Impala | SS |
| 2002-2004 | Chevrolet | Impala | Base |
| 2002-2004 | Chevrolet | Impala | LS |
| 2002 | Chevrolet | Impala | SS |
| 2000-2001 | Chevrolet | Impala | Base |
| 2000-2001 | Chevrolet | Impala | LS |
| 2004-2008 | Ford | F-150 | FX4 |
| 2004-2006 | Ford | F-150 | Lariat |
| 2004-2005 | Ford | F-150 | STX |
| 2004-2008 | Ford | F-150 | XL |
| 2004-2008 | Ford | F-150 | XLT |
| 2004-2006 | Ford | F-150 | XLT Heritage |
| 2002-2004 | Pontiac | Grand Prix | Base |
| 2002-2008 | Pontiac | Grand Prix | GTP |
| 2002-2008 | Pontiac | Grand Prix | GT |
| 2002-2004 | Pontiac | Grand Prix | GT1 |
| 2002-2008 | Pontiac | Grand Prix | GT2 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
