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Walker Exhaust Quiet-Flow Stainless Steel 21337 Direct Fit Exhaust Muffler 2.25" Inlet (Inside) 2.25" Outlet (Inside)

4.3 4.3 out of 5 stars 147 ratings

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Brand Walker
Item Dimensions LxWxH 24.7 x 10.5 x 4.9 inches
Vehicle Service Type Car
Shape Oval
Inlet Connection Size 3 Inches
Material
Stainless Steel
Item Weight
1.5 Pounds

About this item

  • Walker Quiet-Flow SS 21337 Direct Fit Exhaust Muffler 2.25" Inlet (ID) 2.25" Outlet (ID) for Jeep Wrangler
  • COMPATIBILITY – Fits 1997-1997 Jeep Wrangler; 1998-1998 Jeep Wrangler; 1999-1999 Jeep Wrangler; 2000-2000 Jeep Wrangler
  • GET THE RIGHT PART -- Before purchasing, research to ensure that the part will fit your vehicle; enter all vehicle information (year, make, model, engine and trim) for compatibility and check qualifier notes
  • STAINLESS STEEL INHIBITS CORROSION -- The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection
  • 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
  • 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

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Walker Exhaust Quiet-Flow Stainless Steel 21337 Direct Fit Exhaust Muffler 2.25" Inlet (Inside) 2.25" Outlet (Inside)
Walker Exhaust Quiet-Flow Stainless Steel 21337 Direct Fit Exhaust Muffler 2.25" Inlet (Inside) 2.25" Outlet (Inside)
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Price$78.13$105.38$104.98$69.29-40% $74.94
List:$125.53
Delivery
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Get it as soon as Tuesday, Mar 19
Customer Ratings
Sold By
Amazon.com
Amazon.com
Amazon.com
Amazon.com
Amazon.com
compatible vehicles
Car
Car
Car
Car
Car
Car
inlet size
3
2.25
2.25
2.25
material
Stainless Steel
Stainless Steel
Stainless Steel
Stainless Steel
Stainless Steel
Stainless Steel
weight
1.5 pounds
9 pounds
0.5 pounds

Important information

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Top Brand: Walker

Highly Rated
4.4/5 star rating from 100K+ customer ratings
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50K+ orders for this brand in past 3 months
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From the manufacturer

Hero
Walker Quiet Flow Module2

WALKER QUIET-FLOW SS MUFFLERS

Combining industry-leading coverage with a direct fit OE-style replacement design, Walker Quiet-Flow SS mufflers and muffler assemblies deliver a precision fit, superior flow and OE-style sound. Walker Quiet-Flow SS mufflers are the only broad market muffler to feature 100% stainless-steel heads, shell, bushings, louvered tubes and partitions.

Module3-01

Module3-02

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EASY TO INSTALL

Direct-fit bolt-on replacement includes OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and/or welding

CORROSION RESISTANT STAINLESS STEEL

The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection

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

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 structural stability and longer service life

Module-04

WHAT IS AN EXHAUST SYSTEM?

Vital for fuel economy and the environment, your vehicle’s exhaust system carries away harmful gases that are created during the combustion process. The exhaust system not only keeps dangerous gases like carbon monoxide, nitrogen oxides and hydrocarbons from entering the cabin but it also "cleans up" the gases before they are released into the environment. Here are the components of an exhaust system:

  1. Manifold/Manifold Converters
  2. Oxygen (O2) Sensor Ports
  3. Catalytic Converters
  4. Resonator Assemblies
  5. Mufflers/Muffler Assemblies

Module5-01

Module5-02

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Module5-04

SIGNS OF MUFFLER WEAR

Mufflers primarily deteriorate from the inside out due to the acidic moisture produced by the combustion process. Other signs you may need to replace your muffler include noise coming from the muffler, a foul odor from not properly filtering exhaust gases or a distorted body shell.

HOW TO TORQUE FLANGES

Progressively tighten bolts on flanges to avoid exhaust system leaks, gasket & stud failure and premature system fatigue & failure. For example, if the nuts require 60-ft-lbs of torque, start by torquing all nuts to 20-ft-lbs, then 40-ft-lbs and finish at 60-ft-lbs. For Y-pipes secure both sides simultaneously, tightening in a rotating sequence between both pipes. For manifold converters, begin sequence in the middle & work evenly out between both sides.

CHOOSING THE RIGHT CLAMP

Manufactured from premium steel, these clamps are available in multiple varieties of saddle, band and wire ring clamps. Selecting the correct clamp style is critical for achieving desired levels of sealability, durability and serviceability. May require separate purchase.

WHY MUFFLER QUALITY MATTERS?

A muffler’s cross section is key to its performance. Walker Quiet-Flow SS mufflers feature OE-style cross sections to deliver the same quiet, factory sound experienced when the vehicle was new. Walker’s approach helps prevent degraded cabin acoustics, including exhaust drone.

Product Description

The only broad-market muffler with 100% stainless-steel construction, Walker Quiet-Flow SS mufflers feature precision fit, superior flow and OE-style sound. Quiet-Flow SS mufflers are available for most domestic and import vehicles

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here. [PDF 99 KB]

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Walker Exhaust Quiet-Flow Stainless Steel 21337 Direct Fit Exhaust Muffler 2.25" Inlet (Inside) 2.25" Outlet (Inside)


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Customer reviews

4.3 out of 5 stars
4.3 out of 5
147 global ratings

Customers say

Customers like the quality, value, fit, noise and ease of installation of the muffler. They mention that it looks like well constructed, fits perfectly and provides a nice low profile growl.

AI-generated from the text of customer reviews

23 customers mention17 positive6 negative

Customers like the noise of the muffler. They mention that it's the quietest muffed, provides a nice low profile growl, and has a purring sound.

"...It was easy to install and the Jeep is nice and quiet with good power." Read more

"...4.0 has no Cat and is very quiet. 2.5 has Cat with the same muffler as the 4.0 and is louder than the 4.0...." Read more

"...Great muffler. Nice and Quiet like brand new from the dealership." Read more

"...Test drove it and had to retighten the clamps, but Jeep is much quieter," Read more

11 customers mention11 positive0 negative

Customers are satisfied with the quality of the muffler. For example, they mention it's well-constructed, quiet, and easy to install.

"...It was easy to install and the Jeep is nice and quiet with good power." Read more

"...Great muffler. Nice and Quiet like brand new from the dealership." Read more

"...This muffler fulfilled my needs and I'm very satisfied with the quality and sound." Read more

"Original muffler got a hole in itReplaced it with this oneNice and quiet" Read more

6 customers mention6 positive0 negative

Customers are satisfied with the fit of the muffler. They say it fits perfectly.

"...This item was a perfect fit...." Read more

"I put this muffler on my 1997 jeep wrangler. Fit perfectly. Quiet as advertised." Read more

"Works great. Great price and product. Fit nicely with my whole new exhaust system...." Read more

"Seems to be quality made.. It fit perfectly on my TJ.. Make sure you get their tailpipe too. The factory tail pipe is welded on the muffler.." Read more

5 customers mention5 positive0 negative

Customers appreciate the value of the muffler. They mention that it works great and is good value for the price.

"...Solid price for a SS mufflerwithout the drone of a performance muffler." Read more

"For the price this muffler is great. It is close to stock sound but slightly more throaty...." Read more

"Works great. Great price and product. Fit nicely with my whole new exhaust system...." Read more

"good product and price." Read more

4 customers mention4 positive0 negative

Customers find the installation process of the muffler to be easy. They mention that it is easy to work with and to install.

"Installed on a 1999 Jeep Wrangler with 2.5 four cylinder. It was easy to install and the Jeep is nice and quiet with good power." Read more

"Easy install, got this to replace my current muffler that had gotten a loud drone." Read more

"Great product. Easy to work with" Read more

"Mounted up easy. Shipping was fast. But not as quiet as it should be." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the performance of the muffler. They mention that it works well, makes their Jeep TJ quieter, and they have no complaints, rust or problems.

"...It is a little wide for my application but functions well. It would knock against my frame when I would start from the stop position...." Read more

"Works great. Great price and product. Fit nicely with my whole new exhaust system...." Read more

"Had this professionally installed and it works great." Read more

"Had it for a year now, no complaints, rust or problems..." Read more

Perfect fit and replacement for OEM muffler on Jeep
5 Stars
Perfect fit and replacement for OEM muffler on Jeep
The original muffler on my 1999 Wrangler was finally going bad.( 1st picture) This item was a perfect fit. I had to cut the old exhaust just forward of the muffler since it was the original and would not come apart. Bought an adapter at the local auto parts store (2 1/8" ID to 2 1/8" OD) to join the muffler inlet with the pipe from the catalytic converter(2nd picture). Test drove it and had to retighten the clamps, but Jeep is much quieter,
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5.0 out of 5 stars Perfect fit and replacement for OEM muffler on Jeep
Reviewed in the United States on November 11, 2021
The original muffler on my 1999 Wrangler was finally going bad.( 1st picture) This item was a perfect fit. I had to cut the old exhaust just forward of the muffler since it was the original and would not come apart. Bought an adapter at the local auto parts store (2 1/8" ID to 2 1/8" OD) to join the muffler inlet with the pipe from the catalytic converter(2nd picture). Test drove it and had to retighten the clamps, but Jeep is much quieter,
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One person found this helpful
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Reviewed in the United States on May 8, 2022
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Reviewed in the United States on May 5, 2020
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Top reviews from other countries

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gaston
5.0 out of 5 stars bonne correspondance, livré dans les temps.
Reviewed in Canada on June 14, 2022
john cairns
5.0 out of 5 stars works like a charm
Reviewed in Canada on July 9, 2015
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john cairns
5.0 out of 5 stars works like a charm
Reviewed in Canada on July 9, 2015
Put this on my Metric Mechanic Baby Six 325e with a 2 1/4" cat-back system custom made to fit a 5 litre capacity cat..custom hanger to fit the muffler case...works like a charm...nice mello sound that won't drive you crazy even after a 600 mile day.
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Amazon Customer
3.0 out of 5 stars Quiet, but not OEM quiet
Reviewed in Canada on July 24, 2016
One person found this helpful
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