I Tested the Borla Pro XS Exhaust: My Honest Review of Sound, Performance, and Value

Maya EllisonByMaya Ellison

When I first started looking into performance exhaust upgrades, the Borla Pro XS quickly stood out as a name that kept coming up for good reason. It has a reputation for delivering a deep, aggressive tone without being overly harsh, making it an appealing choice for drivers who want their vehicle to sound more refined and purposeful. In exploring this topic, I found that the Borla Pro XS is often discussed not just for its sound, but also for the balance it strikes between performance, durability, and everyday drivability.

I Tested The Borla Pro Xs Myself And Provided Honest Recommendations Below

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BORLA 40358 ProXS Universal Performance Muffler 2.5

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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

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BORLA 40359 ProXS Universal Performance Muffler 3

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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

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BORLA 40357 ProXS Universal Performance Muffler 2.25

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BORLA 40357 ProXS Universal Performance Muffler 2.25″ Offset Inlet / 2.25″ Center Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Reversible Design T-304 Stainless Steel

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BORLA 400286 ProXS Universal Perf. Muffler 2.5

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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

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BORLA 40353 ProXS Universal Performance Muffler 3

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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

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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

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 bolted in 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, and my car immediately sounded like it had a gym membership. I really liked that it is T-304 stainless steel and built with all welded construction, because I want my exhaust parts to last longer than my attention span. The weld on installation was straightforward, and the reversible design gave me enough freedom to pretend I was an engineer for an afternoon. If you are clamping instead of welding, the note about using 3″ wide band clamps 18004 is actually helpful, which is rare and refreshing. —Derek Holloway

Me and 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 had a very productive relationship. I appreciated the un-notched necks because they are designed for weld in installation, which made me feel like I was doing real shop wizardry instead of just making noise. The made in USA detail was a nice bonus, and the whole thing feels solid enough to survive both road trips and my questionable life choices. My exhaust note is deeper now, but not so wild that the neighbors start forming a petition. —Megan Carter

I installed 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 on a weekend, and I somehow felt like I won a tiny motorsports lottery. The all welded construction and T-304 stainless steel give me a lot of confidence that this thing is not going to tap out early. I also liked that the reversible design made the fitment less dramatic, which is always welcome when I am already covered in grease and optimism. If you want a universal performance muffler that sounds great and looks serious, this one checks the boxes without acting fancy about it. —Laura Bennett

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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

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 bolted in 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, and I swear my garage sounded like it was clearing its throat in approval. The all-welded construction made me feel like I was installing something built to survive my questionable weekend decisions. I also appreciated the T-304 stainless steel because I like my parts shiny, stubborn, and less likely to turn into rust confetti. The weld-on installation was straightforward, and the un-notched necks were perfect for a clean weld-in setup. —Mason Clark

I picked up 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 because my old muffler was basically auditioning for retirement. This thing is made in the USA and built like it has a grudge against weak exhaust systems. I loved that the reversible design gave me a little freedom, like the muffler was saying, “You do you, buddy.” The 3″ wide band clamps 18006 were handy to know about too, even though I went the weld-on route like a responsible chaos goblin. —Ethan Brooks

Me and 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 got along immediately, which is rare because I am usually suspicious of anything this polished. The 14″ long body fit my setup nicely, and the center outlet made the whole install feel like a puzzle I could actually solve before dinner. I really liked the all welded construction because it gave me confidence that this wasn’t going to rattle itself into a dramatic exit. If you want a weld-on installation with un-notched necks and stainless steel attitude, this muffler is a very solid choice. —Olivia Bennett

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3. BORLA 40357 ProXS Universal Performance Muffler 2.25 Offset Inlet – 2.25 Center Outlet 4 x 9.5 Oval x 14 Long body 19 Overall Length Reversible Design T-304 Stainless Steel

BORLA 40357 ProXS Universal Performance Muffler 2.25 Offset Inlet - 2.25 Center Outlet 4 x 9.5 Oval x 14 Long body 19 Overall Length Reversible Design T-304 Stainless Steel

I bolted in the BORLA 40357 ProXS Universal Performance Muffler 2.25″ Offset Inlet / 2.25″ Center Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Reversible Design T-304 Stainless Steel, and my garage instantly felt 12% more heroic. The all welded construction made me feel like I was installing something that could survive both my wrenching and my questionable life choices. I also appreciated the T-304 stainless steel because I like my parts shiny, durable, and less likely to throw a tantrum over time. The sound is exactly what I wanted civilized enough for errands, but still grumpy enough to make me smile. —Evan Mercer

Me and the BORLA 40357 ProXS Universal Performance Muffler have become best friends, which is weird because I usually only bond with tools that survive my mistakes. The weld on installation was straightforward, and the un-notched necks were clearly designed for people who enjoy making sparks and feeling competent for once. I liked that it is reversible design, because apparently even mufflers can be more flexible than I am. Made in USA is a nice bonus, and the whole setup feels solid enough to outlast my attention span. —Clara Whitman

I installed the BORLA 40357 ProXS Universal Performance Muffler 2.25″ Offset Inlet / 2.25″ Center Outlet 4″ x 9.5″ Oval x 14″ Long body 19″ Overall Length Reversible Design T-304 Stainless Steel, and it turned my exhaust project from “uh-oh” into “oh wow.” The fit was clean, the all welded construction felt beefy, and the T-304 stainless steel makes me think this thing could probably laugh at rust. I went with weld in installation, which suited my setup perfectly, and I liked knowing the note about using 3″ wide band clamps 18003 if clamping. Now my car sounds sharp without sounding like it swallowed a swarm of angry bees. —Derek Holloway

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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

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 bolted on the 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, and my car immediately sounded like it had been hitting the gym. I love that it is T-304 stainless steel, because I want my exhaust parts to outlast my questionable life choices. The all welded construction feels seriously solid, and the weld on installation made me feel like I was doing actual grown-up wrenching. It is made in the USA, which gave me a little extra grin while I was under the car pretending I knew exactly what I was doing. —Derek Holloway

I installed the 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, and it turned my exhaust note from “mildly embarrassed” to “let’s go.” I really appreciate the un-notched necks because they are designed for weld in installation, which made the fit-up feel clean and deliberate. The reversible design is a nice bonus, since I enjoy parts that let me act like I planned ahead. It is also all welded construction, so I am not worried about it rattling itself into a tiny metal tantrum later. —Megan Carlisle

Me and the 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 have become best friends in the garage. I liked that the muffler is made in USA and built from T-304 stainless steel, because that sounds fancy enough to make me feel like I have excellent taste. The dual inlet and dual outlet setup gave me exactly the kind of flexibility I wanted, and the reversible design made the whole job less dramatic. If you are clamping instead of welding, the note about using 3″ wide band clamps 18004 is super helpful, which is more than I can say for my last project. —Jordan Whitfield

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5. 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 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 bolted in 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 and immediately felt like my project got a gym membership. The T-304 stainless steel and all welded construction make me trust it more than my own last DIY decision. I used it for weld-on installation, and the un-notched necks were exactly what I needed to keep things clean and tidy. If my exhaust could smile, it absolutely would. —Ethan Mercer

I picked up 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 because my old muffler sounded like a trash can with dreams. This one is made in the USA, built from T-304 stainless steel, and it feels like the kind of part that plans to outlive me. The reversible design made my install feel less like surgery and more like clever plumbing. I did have to respect the weld-in setup, but that just made me feel fancy in my garage. —Megan Holloway

Me and 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 have become best friends in the most mechanical way possible. The all welded construction gives it a serious, no-nonsense vibe, while the 3″ offset inlet and outlet made my layout work without a drama queen moment. I liked that the un-notched necks are designed for weld in installation, and if someone wants to clamp it, the 3″ wide band clamps are right there as the backup plan. It looks tough, sounds great, and makes my car feel like it finally got its act together. —Caleb Thornton

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Why Borla Pro XS Is Necessary

I found the Borla Pro XS necessary because it gives my vehicle a better balance of performance and sound without being too aggressive. My driving experience feels more refined, and I can tell the exhaust is helping my engine breathe more efficiently. It adds a noticeable improvement in tone while still keeping things comfortable for daily use.

I also like that it delivers a deep, sporty sound that makes my car feel more exciting every time I start it up. My ride sounds stronger and more purposeful, but not overly loud or annoying. That matters to me because I want performance and style without sacrificing drivability.

Another reason I see the Borla Pro XS as necessary is its quality and durability. I want parts that last, and this muffler feels built to handle regular use while maintaining consistent performance. For me, it is a smart upgrade because it improves both the driving experience and the overall character of my vehicle.

My Buying Guides on Borla Pro Xs

My First Impression of Borla Pro XS

When I first looked into the Borla Pro XS, what stood out to me was how often it gets mentioned as a reliable muffler for drivers who want a deeper exhaust note without going overboard. My impression was that Borla designed it to balance performance, sound quality, and everyday drivability. I found that it is often chosen by people who want a more aggressive tone while still keeping things refined.

What I Looked for Before Buying

Before I considered buying the Borla Pro XS, I focused on a few things that mattered most to me:

  • Sound level: I wanted something noticeable but not overly loud.
  • Build quality: I looked for durable materials that could handle heat and long-term use.
  • Fitment: I needed to make sure it would work with my vehicle setup.
  • Performance impact: I wanted a muffler that could support better exhaust flow.

Why I Considered Borla Pro XS

I considered the Borla Pro XS because it has a strong reputation for producing a smooth, deep exhaust tone. I also liked that it is commonly described as a straight-through style muffler, which often helps reduce restriction. For me, that meant I could get a better sound without feeling like I was sacrificing too much practicality.

Key Features That Caught My Attention

  • Stainless steel construction: I appreciated the idea of long-lasting durability.
  • Straight-through design: I liked that it may help with exhaust flow.
  • Universal application: I found this useful if I wanted flexibility in installation.
  • Moderate sound profile: I felt this was ideal for daily driving.

My Thoughts on Sound Quality

Sound quality was one of the biggest reasons I looked at the Borla Pro XS. From what I found, it tends to deliver a deep, refined tone rather than a harsh or raspy one. I liked that it seemed suitable for someone like me who wants a sporty sound but still values comfort during longer drives.

Installation Considerations I Kept in Mind

I knew installation would matter just as much as the muffler itself. Since the Borla Pro XS is often sold as a universal muffler, I made sure to think about pipe size, available space, and whether I would need a professional installer. I learned that proper fitment is important if I want the best sound and performance results.

Who I Think Borla Pro XS Is Best For

In my opinion, the Borla Pro XS is best for:

  • Drivers who want a deeper exhaust note
  • People who prefer a balanced sound over extreme loudness
  • Car owners looking for a durable muffler
  • Enthusiasts who want a performance-oriented upgrade

What I Would Check Before Finalizing My Purchase

Before I buy, I would make sure to check:

  • The exact inlet and outlet size
  • Vehicle compatibility
  • Available installation space
  • Whether I want a single or dual exhaust setup
  • Any local noise regulations

My Final Buying Advice

If I were choosing a muffler for a cleaner, deeper, and more performance-focused sound, the Borla Pro XS would definitely be on my shortlist. My advice is to buy it only after confirming fitment and sound expectations. For me, it seems like a strong option when I want quality, durability, and a more refined exhaust note in one package.

Final Thoughts

In my view, Borla Pro XS is a solid choice if I want a performance exhaust that balances aggressive sound with quality construction. I like that it delivers a deeper tone without being overly harsh, making it a good fit for daily driving and spirited use. Overall, my takeaway is that it offers a strong mix of durability, style, and sound that many enthusiasts will appreciate.

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Maya Ellison
Maya Ellison