The MagnaFlow 5 X 11in. Oval Straight-Through Performance Exhaust Muffler 12588 is engineered to enhance your ride with a healthy helping of our signature exhaust sound and dyno-proven performance thanks to its free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The reversible, universal 3/2.5in. diameter inlet/outlet Straight-Through layout allows you to install it in whatever orientation and configuration you see fit. However, professional installation is highly recommended. Muffler 12588s weight-optimized 5x11x22in. oval-shaped body features a satin finish that elevates the overall aesthetics of your current exhaust setup. 12588 is made of durable, corrosion resistant stainless steel and produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow's limited lifetime construction warranty.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2006 | Cadillac | Escalade | Base |
| 2003-2006 | Cadillac | Escalade ESV | Base |
| 2003-2006 | Cadillac | Escalade EXT | Base |
| 2007-2008 | Chevrolet | Suburban 2500 | LS |
| 2007-2008 | Chevrolet | Suburban 2500 | LT |
| 2007 | Chevrolet | Suburban 2500 | LTZ |
| 1996-1999 | Chevrolet | Tahoe | Base |
| 1996-1999 | Chevrolet | Tahoe | LS |
| 1996-1999 | Chevrolet | Tahoe | LT |
| 2008 | Chevrolet | Trailblazer | Base |
| 2002-2007 | Chevrolet | Trailblazer | LS |
| 2002-2009 | Chevrolet | Trailblazer | LT |
| 2002-2003 | Chevrolet | Trailblazer | LTZ |
| 2002-2004 | Chevrolet | Trailblazer | North Face |
| 2003-2006 | Chevrolet | Trailblazer EXT | LS |
| 2002-2006 | Chevrolet | Trailblazer EXT | LT |
| 2002-2004 | Chevrolet | Trailblazer EXT | North Face |
| 2009-2010 | Dodge | Ram 1500 | Laramie |
| 2009-2010 | Dodge | Ram 1500 | SLT |
| 2009-2010 | Dodge | Ram 1500 | Sport |
| 2009-2010 | Dodge | Ram 1500 | ST |
| 2009-2010 | Dodge | Ram 1500 | TRX |
| 2009-2010 | Dodge | Ram 1500 | TRX4 |
| 2004-2009 | GMC | Envoy | SLE |
| 2004-2009 | GMC | Envoy | SLT |
| 1999 | GMC | Yukon | Denali |
| 1996-1997 | GMC | Yukon | SL |
| 1996-1999 | GMC | Yukon | SLE |
| 1996-1999 | GMC | Yukon | SLT |
| 2003-2006 | GMC | Yukon XL 1500 | Denali |
| 2007-2008 | GMC | Yukon XL 2500 | SLE |
| 2007-2008 | GMC | Yukon XL 2500 | SLT |
| 2006 | Isuzu | Ascender | Base |
| 2004-2006 | Isuzu | Ascender | LS |
| 2004-2005,2007-2008 | Isuzu | Ascender | S |
| 2013-2016 | Nissan | Frontier | Desert Runner |
| 2010 | Nissan | Frontier | LE |
| 2010-2016 | Nissan | Frontier | PRO-4X |
| 2011-2016 | Nissan | Frontier | S |
| 2010 | Nissan | Frontier | SE |
| 2011-2016 | Nissan | Frontier | SL |
| 2011-2016 | Nissan | Frontier | SV |
| 2011-2014 | Ram | 1500 | Big Horn |
| 2012-2014 | Ram | 1500 | Express |
| 2013-2014 | Ram | 1500 | HFE |
| 2012-2014 | Ram | 1500 | Laramie |
| 2014 | Ram | 1500 | Laramie Limited |
| 2012-2014 | Ram | 1500 | Laramie Longhorn |
| 2014 | Ram | 1500 | Lone Star |
| 2011-2014 | Ram | 1500 | Outdoorsman |
| 2013 | Ram | 1500 | R/T |
| 2011-2014 | Ram | 1500 | SLT |
| 2014 | Ram | 1500 | Special Service |
| 2012-2014 | Ram | 1500 | Sport |
| 2011-2012 | Ram | 1500 | ST |
| 2012-2014 | Ram | 1500 | Tradesman |
| 2012 | Ram | 1500 | Tradesman HD |
| 2011 | Ram | 2500 | Laramie |
| 2011 | Ram | 2500 | Laramie Longhorn |
| 2011 | Ram | 2500 | Power Wagon |
| 2011 | Ram | 2500 | SLT |
| 2011 | Ram | 2500 | ST |
| 2001-2006 | Toyota | Sequoia | Limited |
| 2001-2006 | Toyota | Sequoia | SR5 |
| 2007-2013 | Toyota | Tundra | Base |
| 2001-2002,2007-2013 | Toyota | Tundra | Limited |
| 2013 | Toyota | Tundra | Platinum |
| 2014-2015 | Toyota | Tundra | SR |
| 2001-2002,2007-2011,2014-2015 | Toyota | Tundra | SR5 |
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.
