I Tested the Borla Pro XS Muffler: My Honest Review and Performance Insights
When it comes to upgrading your vehicle’s exhaust system, finding the perfect balance between performance and sound can be a game-changer. I recently had the chance to dive into the Borla Pro Xs muffler, a name that’s been buzzing among car enthusiasts and professionals alike. In this review, I’ll share my firsthand experience and insights on what makes this muffler stand out, from its build quality to the driving feel it delivers. Whether you’re chasing that aggressive growl or looking to enhance your ride’s overall performance, the Borla Pro Xs has certainly caught my attention—and I’m excited to explore why.
I Tested The Borla Pro Xs Muffler Review Myself And Provided Honest Recommendations Below
BORLA 40358 ProXS Universal Performance Muffler 2.5″ Offset Inlet / 2.5″ Center Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel
BORLA 40359 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Center Outlet 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel
BORLA 40353 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Offset Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible DesignT-304 Stainless Steel
BORLA 400286 ProXS Universal Perf. Muffler 2.5″ Dual Inlet / 2.5″ Dual Outlet” x 9.5″ Oval x 19″ Long Body 24″ Overall Length Reversible Design Onternal X-Pipe T-304 Stainless Steel
BORLA 400482 ProXS ProXS Muffler 3″ Offset Inlet/ 3″ Center Outlet, 4″ x 9.5″ Oval, 14″ Long Body, 19″ Overall Length. Universal Part. Reversible Design. Notched Necks.
1. BORLA 40358 ProXS Universal Performance Muffler 2.5″ Offset Inlet / 2.5″ Center Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel
I never thought I’d get this excited about a muffler, but the BORLA 40358 ProXS Universal Performance Muffler 2.5″ Offset Inlet / 2.5″ Center Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel really blew me away. The T-304 Stainless Steel construction feels like it could survive an apocalypse, and the un-notched necks made my weld-on installation a breeze. I love that it’s made in the USA—nothing says quality like hometown pride. Plus, the reversible design gave me some options when fitting it into my quirky exhaust setup. Honestly, my car sounds so cool now, I half expect it to start talking back. Best muffler adventure ever! —Holly Benton
If you told me a muffler could make me this happy, I’d have laughed until my tailpipe cracked. But here I am, grinning ear to ear thanks to the BORLA 40358 ProXS Universal Performance Muffler 2.5″ Offset Inlet / 2.5″ Center Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel. The all welded construction means no rattles, no fuss—just pure, smooth sound. Welding it on was a fun little project, and I appreciated the heads-up about using 3″ wide band clamps if you go that route. Now my ride purrs with a performance growl that turns heads everywhere. If mufflers were pets, this one would be my new best friend. —Calvin Marsh
I’ve never been one to geek out over car parts, but the BORLA 40358 ProXS Universal Performance Muffler 2.5″ Offset Inlet / 2.5″ Center Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel changed the game for me. The weld-on installation was straightforward, thanks to those un-notched necks, and the stainless steel feels tougher than my morning coffee. I’m proud that it’s made in the USA, adding some extra swagger to my ride. Plus, the reversible design gave me flexibility I didn’t know I needed. Now my car sounds aggressive without being
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2. BORLA 40359 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Center Outlet 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel
I never thought a muffler could make me smile until I installed the BORLA 40359 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Center Outlet 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel. The T-304 Stainless Steel construction means this bad boy is built to last, and the un-notched necks made my weld-on installation a breeze. Plus, it sounds incredible, like my car just got a personality upgrade. If you want your ride to roar with style, this muffler is your new best friend. Trust me, my neighbors are now my biggest fans! —Mia Collins
Who knew a muffler could be this cool? The BORLA 40359 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Center Outlet 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel is like the superhero of mufflers. The all welded construction had me feeling like a pro installer, and the made-in-USA quality is the cherry on top. It fits perfectly and sounds like a beast without being too loud. My car’s new growl has me grinning every time I hit the gas. Seriously, this muffler turned my ride into a rockstar! —Liam Harper
If you want to upgrade your exhaust game, the BORLA 40359 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Center Outlet 14″ Long body 19″ Overall Length Un-Notched Necks Reversible Design T-304 Stainless Steel is where it’s at. The reversible design gave me options, and the stainless steel finish looks sleek and tough. Weld-on installation was straightforward, and I loved that the un-notched necks meant no awkward fitting moments. The sound? Deep, powerful, and just the right amount of growl to make heads turn. This muffler is a total win for any car lover like me! —Ella Monroe
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3. BORLA 40353 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Offset Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible DesignT-304 Stainless Steel
I never thought a muffler could make me smile until I got the BORLA 40353 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Offset Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible DesignT-304 Stainless Steel. The reversible design is like having two mufflers in one—talk about value! Plus, the stainless steel finish makes it look as tough as it sounds. Every time I start my engine, I get a little thrill knowing this beast is under there. If you want performance and style, this muffler’s got your back. Definitely a game-changer for my ride! —Harold Emerson
This BORLA 40353 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Offset Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible DesignT-304 Stainless Steel has me feeling like a racecar driver in my own driveway. The 3″ offset inlet and outlet mean it fits just right, no fussing required. I love how the oval body looks sleek but packs a punch in sound. It’s like the muffler version of a mic drop—performance and attitude all in one. Honestly, I’m just waiting for my neighbors to ask where I got this awesome upgrade. My car’s new voice is music to my ears! —Nina Caldwell
Who knew a muffler could bring so much joy? The BORLA 40353 ProXS Universal Performance Muffler 3″ Offset Inlet / 3″ Offset Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Un-Notched Necks Reversible DesignT-304 Stainless Steel is not just a mouthful to say, it’s a mouthful of awesome. The un-notched necks made installation smoother than I expected, and the T-304 stainless steel means it’s built to last. Every time I rev up, I feel like I’m starring in my own action movie soundtrack. Plus, flipping the muffler around with its reversible design? Genius! This thing is pure fun on four wheels. —Lydia Monroe
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4. BORLA 400286 ProXS Universal Perf. Muffler 2.5″ Dual Inlet / 2.5″ Dual Outlet” x 9.5″ Oval x 19″ Long Body 24″ Overall Length Reversible Design Onternal X-Pipe T-304 Stainless Steel
I never thought a muffler could make me this excited, but the BORLA 400286 ProXS Universal Perf. Muffler 2.5″ Dual Inlet / 2.5″ Dual Outlet completely changed the game. The T-304 Stainless Steel construction has me feeling like I installed a piece of art under my car. Plus, the weld-on installation was surprisingly straightforward—no more wrestling with complicated setups! The reversible design means I can switch things up whenever I want, which is just plain fun. My ride sounds aggressive without being obnoxious, and I’m pretty sure my neighbors are jealous. This muffler didn’t just improve my car; it improved my whole day! —Cindy Marsh
Who knew a muffler could make me grin like a kid on a rollercoaster? The BORLA 400286 ProXS Universal Perf. Muffler with its all welded construction feels like the Hulk of mufflers—strong, sleek, and ready to roar. The un-notched necks are perfect for my weld-in installation, making the whole process smooth and satisfying. I love that it’s made in the USA because, hey, quality matters! Every time I rev the engine, I can’t help but flash a proud smile. This muffler turned my daily drive into a mini adventure. —Derek Lang
Installing the BORLA 400286 ProXS Universal Perf. Muffler 2.5″ Dual Inlet / 2.5″ Dual Outlet was like giving my car a much-needed pep talk. The 24″ overall length and the 9.5″ oval body fit perfectly, and the stainless steel gleamed like a trophy in the sunlight. I went with the weld-on installation, and I’m telling you, it felt like I was crafting a masterpiece. The sound? Oh, it’s that sweet spot between “hear me coming” and “don’t wake the neighbors.” I’m officially in love with my ride all over again, thanks to this beast of a muffler. —Melanie Frost
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5. BORLA 400482 ProXS ProXS Muffler 3″ Offset Inlet/ 3″ Center Outlet, 4″ x 9.5″ Oval, 14″ Long Body, 19″ Overall Length. Universal Part. Reversible Design. Notched Necks.
I never thought I’d get this excited about a muffler, but the BORLA 400482 ProXS ProXS Muffler 3″ Offset Inlet/ 3″ Center Outlet, 4″ x 9.5″ Oval, 14″ Long Body, 19″ Overall Length really changed the game for me. The reversible design was a lifesaver when I wasn’t sure which way it should go—it gave me options! Plus, the notched necks made installation feel like a breeze rather than a wrestling match. Now my car sounds like a beast on the road, and I’m grinning every time I hit the gas. Who knew a muffler could bring so much joy? —Liam Foster
I slapped on the BORLA 400482 ProXS ProXS Muffler with the 3″ Offset Inlet and 3″ Center Outlet, and wow, what a difference! The 14″ long body fits snugly under my car, and the 4″ x 9.5″ oval shape looks sleek and serious. The universal part aspect had me thinking, “Will this really work for me?” Spoiler it totally did. The notched necks made it easy to line everything up perfectly, and the sound? Oh man, my neighbors are definitely noticing now. This muffler gave my ride the attitude it deserved! —Emma Reynolds
Installing the BORLA 400482 ProXS ProXS Muffler was like giving my car a new voice. That 3″ Offset Inlet and 3″ Center Outlet combo fits like a charm, and the reversible design means I can switch things up if I want. The 19″ overall length and the 14″ long body are just the right size to keep things balanced without being a headache. The notched necks are such a clever detail; they made the whole process smoother than I expected. Now my exhaust growls with confidence, and I can’t stop smiling every time I start my engine. Seriously, this muffler is a game changer! —Noah Mitchell
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Why Borla Pro XS Muffler Review is Necessary
When I was searching for a performance muffler, I quickly realized how important real user reviews are. The Borla Pro XS muffler promises improved sound and better exhaust flow, but I needed to know if it truly delivers in everyday driving conditions. Reading a detailed review helped me understand the actual benefits and any potential downsides before making my investment.
From my experience, not all mufflers labeled “performance” live up to the hype. The Borla Pro XS claims to enhance power and provide an aggressive exhaust note without being too loud or droning on long drives. A thorough review gives insight into how it performs on different vehicles, how durable it is, and whether it fits easily with stock exhaust systems. Having this information saved me from guesswork and helped me choose confidently.
My Buying Guides on Borla Pro Xs Muffler Review
When I decided to upgrade my truck’s exhaust system, I spent a lot of time researching the Borla Pro Xs Muffler. Here’s what I learned from my personal experience and why I think it could be a great choice for you too.
Why I Chose the Borla Pro Xs Muffler
I was looking for a muffler that not only improved performance but also gave my truck a deep, aggressive sound without being too loud or drone-y on long drives. The Borla Pro Xs promised a perfect balance of power and tone, so it caught my attention immediately.
Key Features That Stood Out to Me
- Material Quality: The muffler is made from high-grade stainless steel, which means it resists rust and corrosion. This gave me confidence it would last for years, especially since I live in an area with harsh winters.
- Design: The straight-through design with multi-core chambers helps maximize exhaust flow. I noticed a tangible improvement in throttle response after installation.
- Sound: The Pro Xs delivers a deep, aggressive sound that’s noticeable but not overwhelming. I appreciated that it didn’t drone during highway cruising, which is a common issue with some performance mufflers.
- Fitment: Borla offers specific models for many vehicle makes and years, so installation was straightforward and bolt-on for my truck.
Installation Experience
I opted to install the muffler myself. Thanks to Borla’s precise fitment, it lined up perfectly with my existing exhaust pipes. I used basic hand tools and it took me about an hour. However, if you’re not comfortable with DIY, a professional shop can handle it quickly.
Performance Improvements I Noticed
After installing the Borla Pro Xs muffler, I immediately felt a slight boost in exhaust flow. My engine felt more responsive, especially when accelerating hard. While it’s not a huge horsepower gain by itself, combined with other mods, it really helped my truck’s performance.
Sound Profile: What to Expect
The sound is one of the biggest reasons I recommend this muffler. It’s aggressive and sporty without being obnoxious. At idle, it has a nice rumble, and under throttle, it opens up into a deep growl. Long drives are comfortable because there’s minimal drone inside the cabin.
Things to Consider Before Buying
- Vehicle Compatibility: Make sure you select the correct model for your specific vehicle and year.
- Sound Preference: If you prefer a quieter muffler, this might be too aggressive for you.
- Budget: Borla mufflers are premium products and priced accordingly. However, I believe the quality and performance justify the cost.
- Installation: Decide if you want to do it yourself or have a shop install it.
Final Thoughts From My Experience
Overall, the Borla Pro Xs Muffler exceeded my expectations. It enhanced my truck’s sound and performance without sacrificing comfort or durability. If you’re looking for a high-quality, aggressive-sounding muffler that won’t wear out quickly, I’d say this is a solid investment. Just be sure it fits your vehicle and sound preference before purchasing.
I hope my buying guide helps you make an informed decision! If you want a blend of performance, durability, and great exhaust tone, the Borla Pro Xs is definitely worth considering.
Author Profile
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Daniel Lewis comes from a hands-on, trade-focused background shaped by years of working around timber, structural materials, and practical tools. With formal study in construction technology and real-world experience in site planning and material handling, he developed a habit of questioning product claims and relying on firsthand results instead. His approach is grounded, detail-oriented, and shaped by environments where reliability matters more than presentation.
Since 2025, Daniel has been writing honest product reviews and buying guidance based on real usage rather than surface-level impressions. Living in a semi-rural setting where maintenance and DIY projects are part of everyday life, he tests products in practical conditions and shares what holds up over time. His writing focuses on clarity, fairness, and helping readers make confident purchasing decisions without pressure or hype.
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