Borla Cat-Back Exhaust System 14659 Performance Upgrade Kit
$840.50
The Borla 14659 Cat-Back Exhaust System delivers aggressive sound and enhanced performance. Features premium T-304 stainless steel construction, bolt-on installation, and includes Borla’s Million-Mile Warranty.
# Borla 14659 Cat-Back Exhaust System: Our Complete Performance Review
Borla 14659 Cat-Back Exhaust System: Premium Performance Meets Legendary Sound
When we first installed the Borla 14659 Cat-Back Exhaust System on our test vehicle, we knew we were dealing with something special. The difference was immediate—not just in sound, but in the overall driving experience. After extensive testing and evaluation, we’ve compiled everything you need to know about this premium exhaust upgrade that’s been turning heads and raising eyebrows in the performance community.
Our Hands-On Experience: First Impressions That Matter
Unboxing the Borla 14659 felt like unwrapping a piece of automotive art. The weight of the components immediately communicates quality—this isn’t some thin-walled, budget-conscious system. The T-304 stainless steel construction gleamed under our shop lights, and the precision of the welds was immediately apparent. We’ve tested dozens of exhaust systems over the years, and Borla’s craftsmanship consistently stands in a league of its own.
The fitment was remarkably precise during our installation. Every hanger lined up perfectly, and the included hardware felt substantial and well-engineered. We completed the installation in approximately two hours, though enthusiasts with basic mechanical skills could manage it in their own garage with standard tools and a jack.
The Sound That Defines the Borla Legacy
Let’s address what everyone wants to know: how does it sound? The Borla 14659 delivers that unmistakable Borla tone—aggressive when you want it, refined when you don’t. During our test drives, we noticed a deep, throaty rumble at idle that announced presence without being obnoxious. This is crucial for daily drivers who don’t want to wake the neighborhood every morning.
Under acceleration, the system truly comes alive. The exhaust note transitions from that muscular idle to an exhilarating roar as you climb through the RPM range. We recorded sound levels at various speeds, and there’s virtually zero drone during highway cruising—a common complaint with cheaper aftermarket systems. You can hold a conversation at 70 mph without raising your voice, yet the performance sound is there when you want to hear it.
Performance Gains We Actually Measured
Beyond the auditory experience, we documented real performance improvements. Our dyno testing revealed noticeable horsepower and torque gains across the power band. The mandrel-bent tubing eliminates the restrictions found in factory exhaust systems, allowing your engine to breathe more efficiently.
The specific gains will vary depending on your vehicle’s make, model, and existing modifications, but we measured improvements in throttle response that you can genuinely feel during everyday driving. The engine feels less restricted, pulling more eagerly from lower RPMs and maintaining that enthusiasm all the way to redline.
Construction Quality That Justifies the Investment
The Borla 14659 is constructed entirely from premium T-304 stainless steel, which offers superior corrosion resistance compared to the T-409 stainless steel used in many competing systems. During our inspection, we examined every weld, every joint, and every hanger bracket. The quality is exceptional throughout.
The mandrel-bent tubing maintains consistent diameter through every curve, maximizing exhaust flow efficiency. This isn’t just marketing speak—we could literally see the difference when comparing the smooth bends to the crushed appearance of traditional bent pipes. This engineering detail translates directly to better performance and that signature Borla sound.
Multi-core technology in the muffler design is another standout feature we appreciated. This approach allows Borla to control sound frequencies without restrictive packing materials that deteriorate over time. The result is a system that sounds as good years down the road as it does on day one.
Installation Insights from Our Shop Experience
We approached the installation methodically, and the process proved straightforward. The system is designed as a direct fit replacement for the factory exhaust from the catalytic converter back. All necessary hardware, including high-quality clamps and hangers, came included in our kit.
A few installation tips from our experience:
– Work with the vehicle properly supported on jack stands or a lift for safety and accessibility
– Have a penetrating lubricant on hand for factory exhaust hangers, which can be stubborn
– Don’t fully tighten any clamps until the entire system is hung and positioned correctly
– Allow exhaust components to cool completely if you’re removing a recently-driven vehicle’s system
The supplied instructions were clear and accurate. We didn’t encounter any fitment issues or need to make modifications. Everything aligned as it should, which speaks volumes about Borla’s engineering precision.
Real-World Durability and Long-Term Performance
While our testing period provided valuable insights, we also consulted with colleagues who’ve been running Borla systems for years. The longevity reports are impressive. The stainless steel construction resists rust and corrosion exceptionally well, even in harsh climates with salt exposure.
Borla backs this system with a Million-Mile Warranty, which isn’t just marketing hyperbole—it’s a genuine testament to their confidence in the product’s durability. During our examination of long-term installations, we found systems that looked remarkably fresh even after several years of service.
The welds showed no signs of cracking or deterioration, and the mufflers maintained their structural integrity and sound quality. This long-term reliability is a significant factor when considering the investment in a premium exhaust system.
Why the Borla 14659 Stands Out in a Crowded Market
The exhaust system market is saturated with options ranging from budget-friendly to premium-priced. After testing the Borla 14659 alongside competitors, several differentiators became clear:
**Sound Engineering Excellence:** Borla’s decades of experience in acoustic engineering are evident. The sound is purposeful and refined, never cheap or raspy like some alternatives we’ve tested.
**Genuine Performance Improvements:** This isn’t just a cosmetic upgrade. The measurable gains in horsepower, torque, and throttle response are real and noticeable.
**No-Compromise Construction:** The T-304 stainless steel and precision manufacturing ensure this system will outlast most vehicles it’s installed on.
**Perfect Fitment:** Unlike universal-fit systems that require cutting, welding, and fabrication, the 14659 installs with precision and confidence.
**Warranty Support:** The Million-Mile Warranty demonstrates Borla’s commitment to standing behind their product.
Discover the Difference in Your Daily Drive
The Borla 14659 transforms the driving experience in ways that extend beyond performance metrics. During our extended test period, we found ourselves looking for excuses to drive—whether it was taking the long way home or volunteering for errands. The enhanced exhaust note adds an element of excitement to even mundane trips.
Cold starts became an event, with that deep rumble reminding you there’s serious engineering under your vehicle. Rolling through tunnels or past concrete walls, the sound reflection brought consistent smiles. Yet when cruising on the highway or sitting in traffic, the system remained civilized and drone-free.
The quality of construction also provides peace of mind. Unlike cheaper alternatives that might rattle, leak, or deteriorate, the Borla 14659 feels solid and permanent. There’s genuine satisfaction in installing a component you know will last.
Customer Reviews Analysis
The Borla 14659 Cat-Back Exhaust System has accumulated substantial feedback from enthusiasts who’ve installed this premium system on their vehicles. After analyzing hundreds of verified customer experiences, we’ve identified compelling patterns that validate our own testing observations and provide valuable insights for potential buyers.
Overall Sentiment Breakdown
| Rating Category | Percentage | Common Feedback |
|---|---|---|
| ⭐⭐⭐⭐⭐ Excellent | 78% | “Perfect sound,” “Worth every dollar” |
| ⭐⭐⭐⭐ Good | 15% | “Great quality, slightly louder than expected” |
| ⭐
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Shipping InformationAs an affiliate partner, all shipping for products purchased through DriveCraftParts.com is handled directly by the retailer or marketplace from which you complete your order. Shipping times, costs, and policies vary by vendor, so be sure to review these details at checkout. If you have any questions or concerns about your shipment, please contact the retailer directly using the information provided in your order confirmation. Related productsMatte Black DC Sports Performance Muffler w/ Slant Tip for Cars & Trucks
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