Quiet-Flow™ Aluminized Steel Round Exhaust Muffler and Pipe Assembly (21151) by Walker®. Optional. Together with delivering OE-style sound, the Quiet-Flow Muffler features 100% structural stainless steel construction that resists rust three times longer than aluminized mufflers offered by competitors. This part is a perfect decision if you are looking for proper OE-quality acoustics and long service life.
Notes
H.D. Arc-welded construction, recommended for commercial use.
Designed for OE equivalent sound and precision fit
Spun-locked heads for a proper resistance to backfire
Bridge construction and durable internal partitions for structural strength and longer life
The inner shell and outer cover lockseams are installed 180° apart for exceptional durability
Strong, OE-style interior spot welds
Three-tube design for quiet tone
OE-style louvered tube technology for a premium, factory-like sound
OE-style domed heads allow for radiated noise reduction
CRF (Continuous Roving Fiberglass) for OE-quality acoustic performance
A complete internal drainage system prevents condensate acids from accumulating between partitions or at the muffler heads
Internal tubes are mechanically joined to the partition to allow expansion and contraction during temperature changes
Backed by a limited lifetime warranty and 90-day Safe & Sound Guarantee
The Walker stainless steel Quiet-Flow Muffler has been developed to provide the top-grade performance you expect from one of the world's leading emissions control companies. This is the only broad market replacement muffler that resists rusting three times longer than premium aluminized mufflers. This part's internal design features bridge construction, durable internal partitions, strong interior spot welds, and special position of the inner shell and outer cover lockseams to improve the muffler's structural stability, strength, and make sure it will last much longer.
To allow OE-quality and factory-style acoustic performance, the muffler is constructed using louvered tube technology, CRF technology, and features three-tube design. Internal tubes are mechanically joined to the partition to allow free-floating expansion and contraction during temperature changes. This elaborate design eliminates the breaking of spot welds, subsequent part deformation, or loose part noise troubles. All stainless steel structure and perfected interior construction make the Quiet-Flow Muffler one of the most advanced, premium designs available today.
Walker® is the world's leading manufacturer of automotive exhaust systems and emission control products for the replacement and OE markets. It offers complete engine-to-tailpipe exhaust solutions and exploits modern emission control technologies that fully satisfy the needs of the automotive industry. Walker has introduced a long line of innovations that revolutionized the market and set new standards for quality and durability. The louvered tube, stainless steel muffler, and forerunners of today's catalytic converters were the industry 'firsts' developed by Walker. It is also the first aftermarket manufacturer that offered a Limited Lifetime Warranty for the professional installer. Walker®, an industry leader in emissions control products, offers a complete line-up to meet all customer needs! World-class, engine-to-tailpipe exhaust solutions for domestic and import vehicles. Walker has everything from brackets and hangers, to clamps and gaskets - all the accessories you need to do the complete exhaust job. Walker is your one-stop exhaust shop, offering a full line of accessories.
Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
Really like the quality the quietness and the performance overall.
Very happy and it was easy plug and Play.
Of course it will take some effort to get rid of the older one.
Posted by Ziyad (Cold Spring, MN) / May 02, 20242005 Nissan Titan
When accelerating, it is noticeably louder than OEM part. FFS why must there be impossible to remove paper based stickers all over these exhaust parts which are meant to get hotter than a conventional oven? Spent half an hour diligently scraping them only to have the residue burn enough to make everything smell like smoke. Spend the extra 2 cents for a plastic based label and pass the price on to the consumer even. We're spending hundreds of dollars on these things, please respect our time enough to put a sticker that comes off the damn exhaust part within one eon of trying to take it off. Also, please include the bolts which fasten the tailpipe to the muffler in the Honda Element exhaust diagram.
Posted by Eric (Tampa, FL) / June 22, 20222008 Honda Element
I bought this muffler February of 2017. It was easy to install and sounded pretty quiet. Unfortunately the tailpipe corroded where it joins the muffler. It broke today (May 2021) and the muffler was scraping the road, hanging by the rear rubber hangers. I thought that it would last longer. I live in the Pacific Northwest. It's wet but there is no salt on the road.
Posted by Customer / May 31, 20211994 Honda Accord
Purchased this muffler and had it installed at Monro Muffler. I was told that this muffler was of better quality than their stock muffler at less than 1/3 the price. I saved a great deal of money by buying my own muffler and having them put it on. Happy Happy Happy.
Posted by Beth (Vestal, NY) / May 07, 20212009 Scion xD
Part is fine but not sure if it was dented when shipped or got dented on the way to us. But it wasn't in a box so it was dented. Got 2 parts both not in box and both dented.
Posted by courtney (Benton Harbor, MI) / March 11, 20212010 Chrysler Town and Country
I put this on a 2008 Chevy Malibu with a 2.4L engine. It is a PERFECT replacement for the oem single in, single out muffler. You only need to change your lower valance from single to dual an easy job. It is of real good quality at a really good price. No modification is needed, just take off the oem muffler and replace it with this one. I can't say enough about the quality of this muffler. It is a Walker after all.
Posted by Steve (Union, NJ) / September 21, 20202008 Chevy Malibu