Borla® - Pro XS™ Stainless Steel Oval Exhaust Muffler

8 reviews|Item # 865800563 View Similar Products
$90.99 - $140.99
Varies - Depends on Product Options
Universal Fit
Fitment Notes:
  • Not Vehicle Specific
  • To ensure precise fit, please check muffler shape, length and inlet diameter: the latter should match your exhaust pipe diameter
  • Installation may involve welding and cutting.
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Product Details

Universal Pro XS™ Stainless Steel Oval 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.


  • To ensure precise fit, please check muffler shape, length and inlet diameter: the latter should match your exhaust pipe diameter
  • Installation may involve welding and cutting.


Muffler Series: Pro XS™
Muffler Body Material: Stainless Steel
Muffler Body Shape: Oval
Muffler Sound: Aggressive / Loud
Muffler Structure: Multi Core


  • 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.


BORLA® PERFORMANCE INDUSTRIES, INC. warrants its products to the original purchaser of record and for the original vehicle on which the product was installed, against defects in materials and workmanship for one million miles for non-moving parts. BORLA® catalytic converters are warrantied for three years. BORLA® will warranty all moving parts, such as valves and actuators for three years. This does not include blemishes or marring of appearance due to weather, road hazards, lack of maintenance or extremes of heat or cold.

This warranty shall apply only if BORLA's examination of the returned product discloses a manufacturing or material defect, and BORLA's sole obligation under this warranty shall be limited to repair or replacement at BORLA's option. Note all attachment to universal mufflers must be made at the nipples; there should be no welding to the shell or end caps as this will void the warranty. No expressed or implied warranties of merchantability or fitness for a particular purpose are hereby made except as otherwise expressly provided herein. In no event shall BORLA® PERFORMANCE INDUSTRIES, INC. or any BORLA® Dealers or Distributors be liable for any loss, inconvenience or damage, whether direct, incidental, consequential or otherwise.

If you have any problems with a BORLA® product, involving either installation or performance, please call the company you bought it from immediately. BORLA® Distributors will take all necessary steps to ensure you are satisfied.

Because sound is subjective, Borla do not warranty for sound. Please do not return your BORLA® product if you do not like the sound level. There are several ways to adjust the sound level. You can obtain venturies, for example, from your retailer that you can place in your system to quiet your system.

When returning your purchase, include a copy of this warranty with the product, along with your name, address, telephone number with area code, a description of the problem and proof of the date of retail purchase (invoice copy). Pack carefully.

This warranty does not include the cost of removal or reinstallation of the product, and does not apply if the product has been damaged by accident, abuse, misuse, or misapplication. This warranty is valid for BORLA® street-legal products only and does not apply to any racing products or street products used for racing purposes. Any modifications to the product or its intended use voids the warranty. No person or representative is authorized to extend any warranties on behalf of BORLA®, other than the warranty expressed herein. Some states do not allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you. Some states do not allow the exclusion of limitations of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and may have other rights which vary from state to state. This warranty replaces all previous warranties.

This warranty excludes XR-1® Raceline products and Marine products.

Products sold outside the USA carry a 3-year limited warranty.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More



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Borla® - Pro XS™ Stainless Steel Oval Unnotched Exhaust Muffler
Borla® - Pro XS™ Stainless Steel Oval Exhaust Muffler
Average Rating: 4.3 of 5
4.5 of 5
Straight Through Design
Straight through design. Looks great!
Posted by (Milton, FL) /
Was this review helpful for you? Yes
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 (Rego Park, NY) / 2004 Jeep Grand Cherokee
Was this review helpful for you? Yes
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 (Slidell, LA) / 2001 Chevy Silverado
Was this review helpful for you? Yes
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 (Prospect, CT) /
Was this review helpful for you? Yes
5 of 5
Look nice and sound nice ! Thanks.
Posted by (Coto Laurel, PR) /
Was this review helpful for you? Yes
4 of 5
Borla ProXS
I removed a single in dual out factory muffler and replaced it with a Y-pipe dual muffler system. This greatly improved the flow and slightly increased acceleration. The sound is more modest and has a more performance feeling than loud and raspy. I chose to replace the resonator with a high flow, Magnaflow glass pack, but you could omit the resonator if you prefer a louder set-up.
Posted by (Cincinnati, OH) /
Was this review helpful for you? YesThis review was helpful for 10 users!
4.5 of 5
Quality Product
I purchased this Borla muffler having owned a Borla exhaust in the past. I went to my local muffler shop to get this muffler put on, and I love the quality and sound of the muffler.
Posted by (Joliet, IL) /
Was this review helpful for you? YesThis review was helpful for 5 users!
3.8 of 5
Qualilty, Great Sound
Installed on my 88 Porsche 924S. Sounds nice and has good stainless construction.
Posted by (East Stroudsburg, PA) /
Was this review helpful for you? YesThis review was helpful for 5 users!
Low Prices Price match guarantee
Guaranteed Fitment Always the correct part
In-House Experts We know our products
Easy Returns Quick & Hassle Free

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