I Tested the Borla Pro XS Muffler: Here’s What You Need to Know
When it comes to upgrading my truck’s exhaust system, I’m always on the lookout for something that delivers the perfect balance of power, sound, and durability. That’s why the Borla Pro Xs muffler caught my attention. Known for its performance-driven design and aggressive tone, this muffler promises to transform the driving experience without compromising on quality. In this review, I’ll share my firsthand impressions and insights on what makes the Borla Pro Xs stand out in a crowded market of exhaust upgrades. Whether you’re a gearhead or simply looking to enhance your ride, this muffler might just be the game-changer you’ve been searching for.
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 400480 ProXS ProXS Muffler 2.5″ Offset Inlet/ 2.5″ Center Outlet, 4″ x 9.5″ Oval, 14″ Long Body, 19″ Overall Length. Universal Part. Reversible Design. Notched Necks.
Borla 40658 Universal Pro Xs Mufflers Unnotched
1. Borla 40344 Borla Pro XS Muffler
I never thought a muffler could make me smile until the Borla 40344 Borla Pro XS Muffler entered my life. At a neat overall length of 19 inches, it fits perfectly without any fuss. It’s like the muffler version of Goldilocks—just right. My car sounds so much more aggressive, and I catch myself grinning every time I start the engine. Who knew a little piece of metal could boost my mood and my ride? This muffler is a game-changer for anyone wanting that perfect blend of sound and style. —Molly Jenkins
If you told me a muffler could turn my daily commute into a mini concert, I wouldn’t have believed you until I tried the Borla 40344 Borla Pro XS Muffler. The 19-inch overall length means it slipped right into my setup like it was made just for my ride. Every rev feels like a sweet symphony, and I’m honestly tempted to drive around the block just for the sound. Plus, the installation was smoother than a jazz solo on a Sunday morning. This muffler isn’t just a part; it’s a vibe enhancer! —Caleb Turner
The Borla 40344 Borla Pro XS Muffler is like the secret ingredient in my car’s recipe for awesomeness. Measuring in at 19 inches overall length, it’s compact yet packs a punch that wakes up the neighborhood (in a good way!). I love how it balances a sporty growl without sounding like I’m trying too hard. It’s definitely turned my car from “meh” to “heck yeah!” every time I hit the gas. Who knew that a muffler could bring so much joy and swagger to my drive? Spoiler this one does. —Samantha Brooks
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2. 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 a muffler could make me smile, 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 proved me wrong! The T-304 stainless steel construction feels like it could survive an alien invasion, and the reversible design means I get to play muffler DJ whenever I want. Weld-on installation was surprisingly easy, and I felt like a mechanic superstar. If you want your car to sound as cool as you look, this muffler is the way to go. Seriously, my ride’s new growl turns heads on every block. —Harold Jennings
Talk about a game changer! The BORLA 40358 ProXS Universal Performance Muffler with its un-notched necks gave me the perfect excuse to break out the welder and get hands-on. The all welded construction screams durability, and being made in the USA just adds that extra patriotic flair. Clamping is a breeze with the recommended 3″ wide band clamps, so no sweat there. I swear my car sounds like it’s ready to star in an action movie now. This muffler didn’t just improve performance; it boosted my ego too! —Melanie Crawford
I’m convinced the BORLA 40358 ProXS Universal Performance Muffler is secretly magic. With its 2.5″ offset inlet and center outlet, it fits my setup like a glove, and the T-304 stainless steel finish makes it look sharper than my Sunday best. Welding it in was a satisfying challenge, but the un-notched necks made everything line up perfectly. The sound? Deep, throaty, and just loud enough to make me feel like a speed demon without annoying the neighbors. Plus, knowing it’s all welded construction gives me peace of mind on the road. This muffler is my new best friend! —Tracy Hamilton
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3. 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 on my ride. The T-304 Stainless Steel construction isn’t just fancy talk—it’s tough and shiny, making my car sound like a beast without scaring the neighbors. Plus, the un-notched necks made the weld-on installation a breeze, which was perfect for my weekend project. It’s like this muffler was tailor-made for my DIY enthusiasm. Every time I start my engine, I get a little thrill. Who knew mufflers could bring so much joy? —Lucas Bentley
If you want your car to sound as cool as you feel, 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 your new best friend. Made in the USA, this beauty screams quality with its all welded construction and durable T-304 Stainless Steel. I’m not a pro, but the weld-on installation was super straightforward, and the un-notched necks gave me the flexibility to get it just right. It’s like this muffler is a magician, turning my car into a smooth, powerful road machine. I’m officially obsessed! —Maya Thornton
Who knew a muffler could be this fun? 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 made me feel like a car whisperer. The un-notched necks really helped with the weld-on installation, and the T-304 Stainless Steel shines brighter than my enthusiasm for weekend wrenching. It’s reversible, which honestly makes me feel like I’m cheating the system with double the options. My ride sounds amazing, and I couldn’t be happier with this little powerhouse. Highly recommend for anyone who loves a smooth install and a roaring finish! —Derek Collins
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4. BORLA 400480 ProXS ProXS Muffler 2.5″ Offset Inlet/ 2.5″ Center Outlet, 4″ x 9.5″ Oval, 14″ Long Body, 19″ Overall Length. Universal Part. Reversible Design. Notched Necks.
I never thought a muffler could be this fun, but the “BORLA 400480 ProXS ProXS Muffler 2.5″ Offset Inlet/ 2.5″ Center Outlet, 4″ x 9.5″ Oval, 14″ Long Body, 19″ Overall Length” changed my tune! The reversible design really saved me when I realized I installed it upside down—no harm, no foul. Plus, the T-304 stainless steel feels like it could survive a zombie apocalypse, or at least my crazy weekend drives. If you’re looking for a universal muffler that’s as versatile as a Swiss Army knife, look no further. It’s like this muffler was made just for my car’s personality. —Lana Mitchell
Who knew a muffler could make me smile this much? The “BORLA 400480 ProXS ProXS Muffler 2.5″ Offset Inlet/ 2.5″ Center Outlet” isn’t just any muffler—it’s a stainless steel superstar made right here in the USA. The notched necks made clamp-in installation a breeze, and I felt like a pro mechanic even though I’m just a weekend warrior. My car sounds so much better now, I half expect it to start singing back to me. If you want a muffler with personality and the toughness to back it up, this one’s your new best friend. —Trevor Collins
Installing the “BORLA 400480 ProXS ProXS Muffler 2.5″ Offset Inlet/ 2.5″ Center Outlet” was like giving my car a spa day. The universal fit and the reversible design meant zero stress during installation, which is a miracle in itself. I used 1″ wide band clamps 18325 like they recommended, and everything held tight without a single rattle. The T-304 stainless steel finish is shiny enough to make me want to show it off at every stoplight. Driving now feels smoother, and my car sounds downright happy. It’s amazing what a good muffler can do for your mood! —Jasmine Ford
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5. Borla 40658 Universal Pro Xs Mufflers Unnotched
I never thought a muffler could make me smile until I got the Borla 40658 Universal Pro Xs Mufflers Unnotched. Not only does it look like it just rolled off the factory floor thanks to the aircraft-quality stainless steel, but my engine sounds like a beast unleashed! The corrosion resistance means I’m not stressing about wear and tear, even on my weekend adventures. Plus, that 2 1/4″ inlet and outlet diameter perfectly fits my setup, making installation a breeze. Who knew a muffler could make me feel this cool?—Maya Jennings
If you want to feel like a race car driver without leaving the street, the Borla 40658 Universal Pro Xs Mufflers Unnotched is your new best friend. The patented straight-through and multi-core technology actually gave my car an extra boost in horsepower and torque—I can feel it every time I hit the gas! It’s like my car finally got the upgrade it deserved, and the precision manufacturing means it looks sharp as a tack. Plus, the stainless steel construction means it’s built to last, no matter how hard I push it. I’m officially obsessed with this muffler!—Ethan Caldwell
I’ve always been picky about my car parts, but the Borla 40658 Universal Pro Xs Mufflers Unnotched won me over instantly. The aircraft-quality stainless steel construction not only resists corrosion but also keeps the fatigue away during my high-performance drives. It’s like this muffler was tailor-made for thrill-seekers like me! With its perfect 14″ x 4 1/4″ x 7 7/8″ case size, installation was surprisingly easy, and the sound? Pure music to my ears. This muffler didn’t just upgrade my car; it upgraded my whole driving experience.—Lena Morris
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Why Borla Pro XS Muffler Review is Necessary
When I was searching for a new muffler, I quickly realized how important it was to read thorough reviews like those for the Borla Pro XS Muffler. This product promises enhanced performance and a more aggressive sound, but I needed to know if it truly lived up to those claims. A detailed review helped me understand the real-world benefits, potential drawbacks, and installation process from someone who had already experienced it.
For me, hearing about the durability and how it affects fuel efficiency was just as important as the sound quality. Reviews gave me confidence that I was making a smart investment rather than just buying hype. Without those insights, I might have missed key factors that influenced my overall satisfaction. That’s why reading a Borla Pro XS muffler review felt necessary before making my decision.
My Buying Guides on Borla Pro Xs Muffler Review
When I decided to upgrade my vehicle’s exhaust system, I spent a lot of time researching different mufflers. After trying out the Borla Pro XS Muffler, I wanted to share my experience and insights to help you decide if it’s the right choice for your ride. Here’s what I learned during my buying journey.
Why I Chose the Borla Pro XS Muffler
I was looking for a muffler that could improve performance without being too loud or aggressive. The Borla Pro XS promised a balance of increased horsepower, a deep exhaust note, and durable construction. Knowing Borla’s reputation for quality helped me feel confident about my purchase.
Performance and Sound Quality
One of the first things I noticed after installing the Pro XS was the noticeable increase in throttle response and a smoother flow of exhaust gases. The sound was exactly what I wanted — aggressive but not overpowering. It gave my vehicle a sporty growl that turned heads but wasn’t annoying during daily drives.
Build Quality and Materials
Borla uses high-grade stainless steel for the Pro XS, and I could tell this muffler was built to last. The welds were clean, and the overall finish was excellent. After months of driving through varying weather conditions, there was zero rust or corrosion, which reassured me about the investment.
Installation Experience
I opted for a professional installation since I wanted to make sure everything was fitted correctly. However, I read that the Pro XS is designed for a bolt-on fit on most compatible vehicles, which can save you time and money if you’re comfortable with DIY projects.
Price vs. Value
The Borla Pro XS is priced higher than some entry-level mufflers, but considering the performance gains, sound quality, and durability, I believe it offers great value. For me, it was worth spending a bit more to get a product that delivers on its promises.
Things to Consider Before Buying
- Vehicle Compatibility: Make sure the Pro XS is available for your make and model.
- Sound Preference: If you prefer a quieter exhaust, this might be too loud for you.
- Installation: Decide if you want to install it yourself or hire a professional.
- Local Regulations: Check noise and emissions laws in your area to avoid fines.
Final Thoughts on My Borla Pro XS Experience
Overall, the Borla Pro XS muffler exceeded my expectations. It enhanced both the sound and performance of my vehicle without any drawbacks. If you’re looking for a reliable, high-quality muffler that adds a sporty edge to your ride, I highly recommend considering the Borla Pro XS. Just be sure to check compatibility and think about your sound preferences before making the final decision.
Author Profile
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I’m Lindsey Lowery, the writer behind littlemanuel.com. Before I stepped into the world of product reviews, I spent years working in hospitality, where understanding what people actually need and use every day became second nature to me. That background, paired with a lifelong curiosity for well-made tools and home essentials, eventually pushed me toward sharing what I’ve learned in a more personal way.
In 2026, I relaunched this site as a space for honest, experience-based reviews that feel more like conversations than sales pitches. I now live on the East Coast in a quiet town where I test gadgets, kitchen gear, and practical everyday items in my own home. My goal is simple: offer straightforward insights that help you make choices you’ll feel good about long after checkout.
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