Borla® - Pro XS™ Stainless Steel Oval Gray Exhaust Muffler

14 reviews|Item # 5435404788|Similar Products
$111.99 - $255.99
Availability Varies - Depends on Product Options
Universal Fit
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Product Details

Universal Pro XS™ Stainless Steel Oval Gray Exhaust Muffler by Borla®. Muffler Sound: Aggressive / Loud. Muffler Structure: Multi Core. These mufflers include many of the features found on Borla’s performance mufflers, at a more affordable price. You get the same patented straight through muffler technology that reduces noise without restricting power, and the same austenitic stainless steel construction that’s backed by Borla’s one million mile warranty.


Muffler Series: Pro XS™
Muffler Body Material: Stainless Steel
Muffler Body Finish: Gray
Muffler Body Shape: Oval
Muffler Reversible: Yes
Muffler Sound: Aggressive / Loud
Muffler Structure: Multi Core
Tips Included: No


  • Increased exhaust flow for better performance
  • Deeper exhaust tone
  • Patented straight-through muffler design reduces backpressure while absorbing sound waves
  • Made from the finest austenitic stainless steel for long-lasting durability
  • All welded construction
  • Backed by the exclusive Borla Million-Mile warranty
  • Proudly made in the USA
  • T-304 stainless steel will never rust
  • 100% welded construction for strength
  • Free-flow design for improved performance
  • High-temperature continuous-filament fiber (CFF) acoustic material for sound control
  • Natural mill finish can be brushed or polished
  • Reversible design for installation flexibility

The Pro XS is a value priced muffler designed to unleash more horsepower and torque from your engine while delivering the best sound quality. The patented straight through muffler design reduces restriction and increases exhaust gas velocity, making sure each cylinder is completely evacuated to make room for the incoming charge. This design absorbs the sound waves without disturbing the power waves, in contrast to the chambered mufflers used by most aftermarket companies. Chambered mufflers use partitions or baffles to subdue sound waves, which also creates backpressure and reduces power.

A Pro XS muffler will have a deeper exhaust tone compared to a factory muffler of the same size. Since the sound absorbing capabilities of the muffler decreases proportionally with the size of the muffler case, a smaller muffler will be louder while a larger than stock size muffler will be quieter.

Borla uses austenitic stainless steel in the construction of the Pro XS muffler, which contains high levels of nickel and chromium, to resist corrosion. Thanks to its construction, this Borla muffler features outstanding durability. This material is harder than the lower grade stainless steel used by the OEM manufacturers, yet is very ductile. Nevertheless, the increased hardness requires special equipment to form and bend. This Borla muffler contains a stainless steel perforated tube wrapped with several layers of stainless steel sound absorbing material and a layer of ceramic sound absorbing, high temperature material, all contained in a fully welded stainless steel shell.

Borla is so confident in the quality of this muffler that it’s guaranteed against defects in materials and workmanship for one million miles.

Borla® is the leading manufacturer of stainless steel performance exhaust products. The company began three decades ago making exhaust systems for concours classic Rolls Royce and Ferrari models, and gradually evolved to become the premier manufacturer of performance exhaust products for street, off-road and racing. Borla pioneered many improvements in the design of performance exhaust systems, holds several patents for innovative exhaust system technology, and has won numerous "Best New Product" awards. Today the company operates a state of the art research and development center in Oxnard, California, and makes all of its products at a world-class manufacturing facility in Johnson City, Tennessee.


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Borla® - Pro XS™ Stainless Steel Oval Gray Exhaust Muffler
1-10 of 14 Reviews
I don't know yet how good the flow characteristics are but this should be renamed Pro HS as it's closer to an H-pipe. More details in the video.
  • youtube-video
Posted by Edward (Miami, FL) / July 31, 20212010 Infiniti G37
More like an H than an X. Dinomax has a better design although lower quality.
Posted by Edward (Miami, FL) / July 31, 2021
4 of 5
Good Exhaust Wrong Car
Borla® - Pro XS™ Stainless Steel Oval Gray Exhaust Muffler
The exhaust is great and sounds good in gear, but putting this on a v6 isn't the best idea if you want a grumble at idle.
Posted by Brandon (Bossier City, LA) / March 21, 20212014 Dodge Charger
Best sounding muffler ever. Not too loud, not too quiet.
Posted by Customer / August 29, 20202006 Chevy Silverado 1500
Looks great and sounds great. Had a rumble to it that makes my Tundra loser then stock, but nowhere near as droning as straight piped.
Posted by Taylor (Pensacola, FL) / February 20, 2020
Good stainless steel quality and good deep sound.
Posted by Vasile (Chicago, IL) / March 29, 2019
5 of 5
Straight Through Design
Straight through design. Looks great!
Posted by Cody (Milton, FL) / December 03, 2017
5 of 5
Name Means Everything!
Borla is one of the bests name on the market! Price and quality you cannot beat it! I can say it's better than Flowmaster, but this is just my opinion! I had a Flowmaster before it was very very loud, specially when I start the car in the morning, I was waking up my neighbors! Now after I change 2 Borla the sound is very soft , but when I needed aggressive just press the gas and you will feel it and hear it the power!
Posted by Denis (Rego Park, NY) / September 30, 20162004 Jeep Grand Cherokee
5 of 5
Borla ProXS Muffler
The product arrived in a perfectly wrapped box and the part was in pristine condition. I'm very satisfied with them. Definitely a very aggressive sound on my 6.0 Chevy truck. Highly recommended.
Posted by Rory (Slidell, LA) / June 02, 20162001 Chevy Silverado
3 of 5
Borla Universal Muffler
I bought this for my 2015 Subaru Impreza, because they don't make anything for it already. Fits well, but the sound wasn't as loud as I expected. Recently got it straight piped and sounds much better.
Posted by Nicholas (Prospect, CT) / May 27, 2016
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