If you own an Infiniti and want to boost its performance and sound, upgrading your exhaust system is a smart, rewarding modification. A high-performance exhaust improves airflow, reduces back pressure, and can add noticeable horsepower and torque while giving your car a more aggressive or refined exhaust note. Nashville is a strong market for automotive aftermarket parts, with several specialty shops and installers that carry premium exhaust brands. Whether you drive a Q50, Q60, G37, G35, or an older model, the right exhaust can transform your driving experience. Below we break down the top five brands available in Nashville, with in-depth details on materials, performance gains, sound characteristics, and where to find them locally.

Benefits of a Performance Exhaust Upgrade

Before diving into the brands, it’s worth understanding what a performance exhaust does. Factory exhaust systems are typically restrictive to meet noise and cost constraints. Aftermarket systems use larger-diameter piping, mandrel bends, and high-flow mufflers to reduce back pressure. This allows the engine to expel exhaust gases more efficiently, often yielding 5–15 horsepower and similar torque gains depending on the system and model. Weight reduction is another benefit—many aftermarket systems use stainless steel or titanium instead of heavy mild steel. Sound quality improves dramatically, with options ranging from a deep growl to a refined European-style note. In Nashville, you also need to consider local noise ordinances; some systems offer adjustable sound or drone-canceling technology to stay compliant while still sounding aggressive.

1. Borla Exhaust

Borla has been a leader in performance exhausts for decades, and their systems for Infiniti models are among the most popular in Nashville. Borla uses T-304 stainless steel—the highest corrosion-resistant grade—and delivers a signature deep, aggressive tone that doesn’t drone at cruising speeds. Their “AtaK” and “S-Type” mufflers give you a choice between an unleashed, race-inspired bark and a more civilized but still sporty sound. Many Nashville performance shops like STS Tires & Wheels and Music City Motorworks stock or can order Borla systems for the Infiniti Q50, Q60, G37, and G35.

Performance gains vary by model but generally range from 8–12 horsepower with a cat-back system. Borla backs their products with a million-mile warranty, which speaks to their durability. If you want an exhaust that sounds aggressive under throttle but remains liveable daily, Borla is a top choice. Nashville’s climate (with occasional humidity) is no match for Borla’s stainless steel construction, ensuring long life even if you drive year-round.

Where to buy in Nashville: Available at independent performance shops, Summit Racing’s local distribution center, and authorized dealers. Many Nashville Infiniti owners also order directly from Borla’s website and have a local shop install.

2. MagnaFlow

MagnaFlow is another heavyweight in the exhaust world, known for its smooth, deep sound and consistent quality. Their systems use a straight-through perforated core muffler design that maximizes flow and produces a distinctive tone—often described as a “muscular purr” with no rasp. For Infiniti models, MagnaFlow offers cat-back and axle-back systems for the G37, Q50, Q60, and even older G35s. The materials are either 304 stainless steel for long life or 409 stainless for a more budget-friendly option (though 409 is less corrosion-resistant, which matters less in Nashville’s moderate climate).

Many Nashville auto shops recommend MagnaFlow for customers who want a noticeable sound upgrade without the drone that some competitors produce. Horsepower gains are typically in the 6–10 HP range, but the real benefit is improved throttle response and a more engaging driving experience. MagnaFlow also offers a limited lifetime warranty, which gives peace of mind. For Infiniti owners who value a refined, sophisticated exhaust note, MagnaFlow is an excellent choice.

Availability in Nashville: Carried by chain retailers like AutoZone (via special order) and specialty shops such as Nashville Muffler & Brake and Exhaust Pros of Nashville. You can also explore MagnaFlow’s full Infiniti lineup on their official site: MagnaFlow.com.

3. AFE Power

AFE Power (Advanced FLOW Engineering) is best known for their high-flow air filters and intake systems, but their exhausts are equally impressive. They design systems specifically for each Infiniti model, using mandrel-bent tubing and a free-flowing muffler design to maximize power. Many Nashville tuners pair AFE Power exhausts with their intake kits for a complete breathing upgrade. For the Q50 and Q60 (especially the 3.0T models), AFE’s cat-back systems are proven to yield up to 15 horsepower and 20 lb-ft of torque when combined with a tune.

Sound-wise, AFE exhausts tend to be on the louder side but with a clean, crisp note that doesn’t get tinny. They offer both polished and black-coated tips, and some systems feature a machined billet exhaust tip for a premium look. Materials are heavy-duty 304 stainless steel with CNC-machined flanges. Nashville Speed Shop and Z1 Motorsports in nearby Brentwood both stock AFE Power products for Infiniti. If you want an aggressive sound with proven power gains, AFE is worth the investment.

AFE backs its exhausts with a lifetime warranty on materials and workmanship. Installation is straightforward for any reputable Nashville muffler shop, and several local Infiniti clubs recommend AFE for its balance of flow and sound control. Check out AFE Power’s website for model-specific dyno charts and sound clips.

4. Invidia

Invidia is a Japanese brand that has earned a strong following among import enthusiasts, including Infiniti owners. Their exhausts are known for precise fitment, a distinctive top-tier sound, and beautiful welds. Invidia’s “Gemini” and “Q300” cat-back systems are particularly popular for the G37 and Q50. The Gemini offers a deep, mellow tone while the Q300 is slightly louder with a sharper exhaust note. Both use T-304 stainless steel and feature 3-inch piping for maximum flow, supporting up to 500+ horsepower if you ever decide to boost your Infiniti further.

Nashville’s JDM and import tuning scene often gravitates toward Invidia because of the brand’s reputation for quality and race-proven durability. Horsepower gains are modest (5–8 HP) on a stock car, but the sound improvement is dramatic. Invidia systems also weigh significantly less than factory exhausts—up to 30 pounds lighter in some cases. Installation is bolt-on and can be done at home with basic tools, though many Nashville owners prefer to have it done at Import Auto Performance or The Garage Nashville.

Availability is good through online retailers like Enjuku Racing and RallySport Direct, which ship quickly to Nashville. For local stock, check Nashville Auto Parts or Custom Exhaust Nashville. More details can be found at Invidia USA.

5. Corsa Performance

Corsa Performance is known for their patented RSC (Reflective Sound Cancellation) technology, which eliminates interior drone while still producing an aggressive exterior sound. This makes Corsa an ideal choice for Infiniti owners who want a sporty exhaust without annoying cabin resonance on long drives. Their systems for the Q50, Q60, and G37 are designed to fit perfectly and include polished stainless steel tips with the Corsa logo. The sound is crisp, with a deep idle and a NASCAR-like roar at full throttle.

Performance gains are comparable to other top brands—around 10 HP and 10 lb-ft torque for cat-back systems. Corsa uses high-quality 304 stainless steel and offers a limited lifetime warranty. Many Nashville drivers appreciate that Corsa systems are 50-state legal (including California emissions), which is a plus if you ever travel or move. Local shops like Nashville Speed & Performance and Exhaust Experts are familiar with Corsa and can recommend the right system for your Infiniti model and year.

Corsa also provides detailed sound files on their website, allowing you to hear the difference before buying. For a refined, drone-free experience that still turns heads, Corsa is hard to beat. Visit Corsa Performance to browse their Infiniti lineup.

How to Choose the Right Exhaust for Your Infiniti in Nashville

Selecting the best system involves more than picking a brand. Consider these factors:

  • System type: Cat-back (full from catalytic converters to tips) offers the best power gains and sound. Axle-back is cheaper and easier to install but less power. For turbocharged Infiniti models (Q50 3.0T), a downpipe upgrade can add even more power, but check local emissions laws.
  • Material: T-304 stainless steel is corrosion-resistant and lasts the longest. T-409 is cheaper but can rust after years. Titanium is lightweight and exotic but expensive and harder to find for Infiniti.
  • Sound preference: Use brand sound clips and model-specific forums (like InfinitiQ50.org or MyG37.com) to hear real-world examples. Also consider Nashville’s noise ordinances—some neighborhoods and downtown areas have strict rules, and a system with removable silencers or adjustable valves (like Borla’s AtaK) can help.
  • Installation: Most local shops charge $150–$300 for a cat-back install. Some brands (Invidia, MagnaFlow) are straightforward; others may require minor adjustments. Check with the shop about fitment guarantees.
  • Warranty: All five brands offer solid warranties. Borla’s million-mile warranty is the best in the industry. Corsa and MagnaFlow also have lifetime coverage.

Nashville’s Infiniti Enthusiast Community and Resources

Nashville has a growing Infiniti owner community, with meets, Facebook groups (e.g., “Nashville Infiniti Owners”), and local events like Music City Motorsports Expo. Visiting a meet can give you firsthand experience with different exhaust sounds and brand reliability. Local shops that specialize in performance exhausts include Nashville Muffler & Brake, Exhaust Pros of Nashville, and The Garage Nashville. For custom fabrication, Rod’s Custom Exhaust in nearby Hendersonville can also build a system tailored to your Infiniti.

Additionally, online communities and forums provide endless reviews and dyno charts. Brands like Corsa and Borla often have thread-specific feedback for Infiniti models, helping you make an informed decision. Always cross-reference dyno results with actual owner experiences, as real-world gains can vary.

Conclusion

Upgrading the exhaust on your Infiniti is one of the most satisfying modifications you can make—it improves performance, reduces weight, and gives your car a personality that stands out in Nashville traffic. The brands covered here—Borla, MagnaFlow, AFE Power, Invidia, and Corsa Performance—each offer unique benefits, from Borla’s aggressive AtaK sound to Corsa’s drone-free refinement. All are readily available through Nashville-area shops or online retailers that ship quickly to Middle Tennessee.

Your final choice should match your driving style, budget, and sound preference. Visit a local shop like Nashville Speed & Performance or STS Tires & Wheels to hear systems in person, or chat with fellow Infiniti owners at the next Nashville car meet. With the right exhaust, your Infiniti will not only perform better but will sound the part every time you drive through Music City.