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Walker Quiet-Flow 54637 Direct Fit Exhaust Muffler Assembly 4' Inlet (ID) 4' Outlet (ID) for Dodge Ram 2500

Free shipping on orders over $29.99

$184.99

$ 84 .99 $84.99

In Stock

About this item

  • COMPATIBILITY – Fits 2004-2004 Dodge Ram 2500; 2005-2005 Dodge Ram 2500; 2006-2006 Dodge Ram 2500; 2007-2007 Dodge Ram 2500; 2008-2008 Dodge Ram 2500; 2009-2009 Dodge Ram 2500; 2004-2004 Dodge Ram 3500; 2005-2005 Dodge Ram 3500; 2006-2006 Dodge Ram 3500;
  • GET THE RIGHT PART -- Before purchasing, please check the “Amazon Confirmed Fit” bar to ensure this part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes. If the “Amazon Confirmed Fit” bar has an “i” in a blue circle, this product has additional notes. Please hover over the “i” on the bar to see notes before making your purchase
  • EASY TO INSTALL -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn't require specialized fabrication and/or welding
  • INHIBITS RUST -- Internal drainage system helps reduce moisture collection
  • BUILT TO LAST -- Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
  • PREMIUM ACOUSTIC CONTROL -- OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
  • DESIGN VALIDATED -- Acoustic and flow tested for quality OE-style sound you can count on
  • BUY WITH CONFIDENCE -- Comes with Walker's limited lifetime warranty and exclusive 90-Day Safe and Sound Guarantee. Visit Walkerexhaust.com for details.


Combining industry-leading coverage with a direct fit OE-style replacement, Walker Quiet-Flow muffler assemblies deliver a precision fit, superior flow and OE-style sound. Quiet-Flow muffler assemblies are available for domestic and foreign vehicles.


Fireman D
2025-09-03 16:21:15
Fits almost exactly like the factory. I noticed the reduction in size on inlet. I don’t think this will change much for me.
sdowney717
2025-09-02 10:35:00
Both ends came bent due to shippers must have dropped it. it is SS. I straightened it out. Cut pipes off at old muffler preserving MBRP muffler for reuse. Then used sawzall to slice inside of pipe carefully so as not to score muffler and used tire wrench slid in to snap it out. used a galvanized steel pipe held inside muffler end and whacked out the crimps so it can slide back into pipe. I combined this with the MBRP muffler that used to be the muffler in front at the downpipe. Nice sound outside truck at idle. Driving is really noticeably quieter than just the SS MBRP muffler. PO had replaced entire exhaust with MBRP, the Walker fit fine using the existing pipes. My tailpipe rod hanger had to go above, not below the rubber block as it is a MBRP tailpipe. Also remove the muffler rubber blocks, use some marine grease on the rod holes and rod hangers, slide muffler onto pipe, push up and slip rubber blocks on by hand to hold muffler works well.I recommend using all band clamps, they do not crimp pipes. I also recommend sealing joints with Permatex Ultra copper put on the pipe ends that slide into the joints. Will survive the heat, seal out water from rusting things together.
mistymorning01
2025-08-19 13:17:27
Super easy to install. Out with the old, in with the new, tighten things down and viola. I did both the muffler and the tailpipe with a grinder w/a cutoff wheel but otherwise basic hand tools.
Customer
2025-08-09 18:43:20
nice ,walker great product
Brandon C.
2025-06-02 10:12:14
My primary issue with the muffler is that on the inlet they step down the diameter of the pipe. It was not needed in the design and does not match stock. This will ad some restrictions to the exhaust but I'm not sure of the impact. They should of used the same design as the outlet. I also think the mounts are off a little bit but it's on my truck. I don't think I would of bought it if I knew about the mentioned problems.
Farmboy
2025-05-04 16:29:07
Direct replacement for OEM, truck sounds great no issues with installation!Recommend for anybody replacing stock muffler and the price was cheaper then any parts store in town.
TGB
2025-03-22 14:28:44
Fit perfect on my 2005 2500 Dodge Ram Cummins
Mike
2025-03-14 11:36:09
Perfect replacement
Customer
2025-03-11 17:12:33
Installed by a shop. Truck is nice and quiet now.
Richard Charlton
2025-02-18 10:04:30
Perfect fit
Bryon Percival
2025-01-22 14:08:40
Normally I find stuff to be ridiculously priced on Amazon compared to Ebay or other places.This was an exception to that rule. Great price and exactly as described and easily installed.I agree with what others have suggested. Do not waste your time with regular muffler clamps , use the wider band clamps that give you an easier, and more secure install.
Isaac Adams
2024-12-01 15:48:58
on time and fit as it should
steve brice
2024-11-29 15:43:02
fits and sounds quieter than the old rusty one, and was an exact match up for my 2007 Dodge Ram 3500 long box.only small problem was the pipe was a bit pushed in from shipping so had to bang it out to fit.
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