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Description
MagnaFlow Muffler Mag SS 22X5X11 2.5 D/3 CThe 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
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 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Great Chair
Color: Black, Style: Classic
The durability, recline, noise, fit, and appearance, and stability of the chair were all fantastic. As someone of a shorter height, the backrest which is normally way to high or short for my head fits perfectly. The chair itself is easy to assemble and very comfortable to sit in for long hours. I tend do a lot of work at home and this chair feels very comfortable without feeling the need to get up. The chair looks great set up in my office and is honestly a great office chair. For moving around a room, the wheel guides across my carpet very smoothly with struggling unlike my previous chair which would need a heavy push. Not only that, the chair is noiseless which is a plus for people who get bothered by little sounds when moving around. The fit could honestly fit anyone of any size as the chair itself is quite wide and roomy for me. The seat is also made up of faux leather and feels well stitched and quite durable.
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Reviewed in the United States on April 4, 2026
★★★★★ 4
Decent Price
Color: Black, Style: Classic
Chair arrived and was missing critical component so that I could not assemble it. Contacted seller and they sent me a similar component within 2 weeks. Chair was now easy to assemble and very comfortable to use for long periods. Although I wished it could raise another two inches. Also be aware chair might be challenging to get thru a standard 29-30inch doorway but not impossible. Thank You Seller for your help.
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Reviewed in the United States on October 23, 2025
★★★★★ 5
Easy installation and comfortable
Color: Black, Style: Classic, Color: Black, Style: Classic
This chair features a premium, quilt-stitched design with thick cushioning that immediately feels supportive. Installation is straightforward — the major components align cleanly, and the hardware fits without forcing, allowing the entire setup to be completed quickly. Once assembled, the chair provides excellent comfort: the padded headrest, wide seat, and soft armrests create a stable, ergonomic sitting experience suitable for long work sessions. The overall build feels solid, and the smooth-rolling casters add to the ease of use.
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Reviewed in the United States on April 19, 2026
★★★★★ 3
Seat angle problem
Color: Black, Style: Classic
This chair is very good. Has exactly the dimensions I was looking for. Overall it looks very well made, excellent quality, easy to install. I'm not giving it 5 starts because I'm not liking the angle of the seat very much. It goes low at the back end and at the front it is very high. It feels really good when I'm working on my computer where I have 1 widescreen monitor with 2 smaller ones on top, so it is very comfortable there. But not so much when I'm just working on my desk filling forms and reading papers. I'm actually getting low back pain. I wrote the seller to ask if there is any kind of adjustment I can make but it doesn't look to me like there is anything than can be done. I'm still keeping it.
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Reviewed in the United States on June 8, 2026
★★★★★ 5
Most comfortable office chair this fluffy guy has ever sat in.
Color: Black, Style: Classic
This chair is incredibly comfortable—easily the most comfortable one I’ve ever sat in. At around 300lbs, I’ve struggled to find a chair that’s both supportive and spacious. Most options feel tight, with the armrests pressing into my hips. Not this one. If anything, I feel small in it—there’s plenty of room on either side. It’s like going from a cramped budget airline seat to first class on a full-service carrier.
The lumbar support is the best I’ve ever used. The materials are top-notch—everything from the base to the legs to the casters is metal (feels like steel). The casters themselves use what look like inline skate wheels and glide effortlessly across carpet—almost too well on hard surfaces, so you might want to consider a rug. Not a flaw, just something to keep in mind.
I’ve paid twice as much for chairs that felt half as good, so in my opinion, this is an excellent value. The faux leather looks great and the stitching appears durable. While it may not last as long as real leather or high-quality fabric, it should hold up for a reasonable amount of time.
Tilt functionality is basic—just two settings: upright or slightly reclined. Honestly, that’s all I need. If you’re looking for something to nap in, this might not be the chair for you. But for office work or gaming, it absolutely delivers all-day comfort.
For reference, I’m 5'8", and the headrest aligns perfectly with the back of my head. If you're 6'5", it might end up being more of a neck rest.
And I have to give a special shoutout to the included T-shaped hex wrench. It may sound silly, but this alone earns it a 5-star review from me. Every other chair I’ve bought includes those awful angled hex wrenches that make you slam your knuckles into the frame with every turn—often accompanied by some colorful language. Sure, I have my own tools, but finding where my wife hid them isn't always easy. A good-quality tool in the box? That’s thoughtful and appreciated.
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Reviewed in the United States on June 19, 2025