Owning an Infiniti in Nashville means you already appreciate the blend of luxury, style, and performance that defines the brand. But for many enthusiasts, the factory settings are just the starting point. Whether you drive a Q50, Q60, G37, or FX35, the desire to unlock more horsepower, sharpen handling, or create a truly unique look is a powerful motivator. Fortunately, Nashville has a thriving automotive aftermarket scene, and several shops specialize in squeezing extra potential out of Infiniti models. This article walks you through the city’s best customization shops, the services they provide, and how to choose the right partner for your build.

Why Nashville Is a Destination for Infiniti Performance

Nashville’s car culture extends far beyond country music and pickup trucks. The city has a growing community of import enthusiasts, track-day participants, and weekend warriors who demand precision engineering. Several factors make Music City a great place for Infiniti performance upgrades:

  • Skilled tuners with experience on Nissan/Infiniti platforms (VQ engines, VR30s, and more).
  • Access to premium parts from brands like Stillen, HKS, KW Suspensions, and Brembo.
  • Local dyno facilities for real-world tuning validation.
  • Active car meets and events that encourage knowledge sharing.

Because Infiniti shares platforms with Nissan, many shops in Nashville have deep expertise with the VQ series and newer turbocharged VR30 engines. This cross-platform knowledge means you can get the same high-quality work that would normally be reserved for dedicated Nissan tuners.

Top Infiniti Performance Shops in Nashville

The city is home to several standout shops that have built strong reputations among local Infiniti owners. Each offers a different specialty, so it pays to understand what they do best.

Auto Performance Nashville

A long-standing shop in the Nashville area, Auto Performance Nashville focuses on engine tuning, forced induction upgrades, and drivetrain modifications. They are well known for custom ECU flashes using platforms like ECUTek and Cobb Accessport. Their in-house dyno allows for precise air-fuel ratio adjustments and ignition timing. Many local Q50 Red Sport owners go here for stage 1 and stage 2 packages that unlock significant gains while maintaining reliability.

  • Specialties: ECU tuning, turbo upgrades, intercooler kits.
  • Example: VR30 twin-turbo upgrade with supporting fuel system.

Vanguard Tuning

Vanguard Tuning has carved a niche for itself with a focus on suspension and chassis dynamics. They are the go-to shop for drivers who want to improve cornering, reduce body roll, and dial in alignment. They carry coilover sets from KW, BC Racing, and Ohlins, and they also offer custom spring rates for track use. Their alignment rack and corner-balance scales ensure that every car leaves with a setup matched to the owner’s weight and driving style.

  • Specialties: Coilover suspension, sway bars, subframe bushings.
  • Example: Complete KW V3 coilover install with custom alignment for a G37 Sport.

Elite Auto Customs

If you want your Infiniti to stand out visually as much as it performs, Elite Auto Customs blends performance and aesthetics seamlessly. They handle full body kit installations, carbon fiber aero components, and custom paint work. They also offer performance exhaust fabrication, from cat-back systems to custom downpipes. Their fabrication shop can create one-off turbo manifolds and intercooler piping for highly modified cars.

  • Specialties: Exhaust fabrication, carbon fiber parts, wide-body kits.
  • Example: Custom 3-inch stainless steel exhaust for a Q60 with 4-inch tips.

Precision Performance

Precision Performance is known for its brake and cooling system upgrades. Many Infiniti owners come here for big brake kits from Brembo or StopTech, as well as upgraded radiators, oil coolers, and auxiliary cooling for turbocharged cars. They also offer drivetrain services like differential fluid swaps, limited-slip differential installations, and custom half-shafts for higher horsepower builds.

  • Specialties: Brake systems, cooling upgrades, differential work.
  • Example: Six-piston Brembo GT kit on a Q50 with two-piece rotors.

Nashville Speed & Style

This shop is a hybrid of performance tuning and luxury modifications. They specialize in wheel and tire packages, offering forged wheels from brands like Vossen, HRE, and Rohana in widths and offsets tailored for Infiniti models. They also handle tire mounting, balancing, and TPMS recalibration. In addition, they offer ECU tuning, air suspension systems, and interior upgrades like alcantara upholstery and custom steering wheels.

  • Specialties: Forged wheels, air ride suspension, interior customization.
  • Example: Vossen HF-5 forged wheels in 20x10.5 with Michelin Pilot Sport 4S tires.

Services Offered in Depth

Beyond the shop specialties, it helps to understand the full scope of performance upgrades available for your Infiniti. Below we dive into the most common services.

Engine Tuning and Remapping

Modern Infiniti ECUs are highly advanced, and a professional tune can safely increase power by 20-40% on turbocharged models. Options include:

  • ECU flash tuning – rewriting the factory map via OBD-II port. Best for daily drivers.
  • Piggyback modules – intercept sensor signals to alter boost/fuel (less common now).
  • Standalone ECUs – full replacement for extreme builds (Motec, Haltech).

A good tuner will perform pulls on a dyno to ensure knock-free operation under all conditions. ECUtek is the most popular platform for Infiniti tuning, offering features like launch control and flex-fuel support.

Performance Exhaust Systems

Replacing the restrictive factory exhaust frees up horsepower and enhances the engine note. Systems range from axle-back to turbo-back on turbo models. Materials include aluminized steel (budget), 304 stainless steel (common), and titanium (lightweight). Many Nashville shops can custom-design a system that fits perfectly without drone. Expect gains of 5-15 hp depending on other modifications.

Suspension Upgrades

Improving handling is one of the best ways to enjoy your Infiniti more on winding roads or at the track. Options include:

  • Coilovers (height and damping adjustable).
  • Lowering springs (budget option, uses factory dampers).
  • Sway bars (reduce body roll; thicker bars from Hotchkis or Eibach).
  • Control arms and bushings (correct geometry after lowering).

Corner balancing is especially important for track use. KW Suspensions offers excellent coilover options for the G37 and Q50.

Brake System Enhancements

Upgraded brakes provide consistent stopping power and reduce fade. Common upgrades:

  • Larger rotors with multi-piston calipers.
  • Braided stainless steel brake lines.
  • High-performance pads (e.g., Ferodo DS2500 or Pagid RS).
  • Ducting to cool front brakes.

Shops like Precision Performance can also install a hydraulic handbrake for drift enthusiasts.

Custom Wheel and Tire Packages

Wheels are the easiest way to transform the look of your Infiniti. Lightweight forged wheels reduce unsprung mass, improving acceleration and ride quality. Tire selection matters: the Michelin Pilot Sport 4S is a favorite for summer performance, while all-season options like the Continental ExtremeContact DWS06 work well in Tennessee’s mild winters. Staggered fitments (wider in the rear) are popular on Q60s and G37s.

Aesthetic Modifications to Complement Performance

Many Infiniti owners prefer a cohesive build where looks and performance go hand in hand. The top Nashville shops offer services that enhance both.

  • Body kits – front lips, rear diffusers, side skirts (carbon fiber or polyurethane).
  • Custom paint and wraps – from satin finishes to intricate designs.
  • Lighting upgrades – retrofit projector headlights, LED fog lights, sequential turn signals.
  • Interior work – suede headliners, carbon fiber trim, custom gauges.

Elite Auto Customs, for example, can integrate a one-off wide-body kit and paint it to match perfectly with your build theme.

Choosing the Right Shop for Your Infiniti

Selecting the perfect customization shop requires homework. Not all shops are comfortable working on high-tech Infiniti electronics, nor do they all have the expertise for specific engine platforms. Consider these factors:

  • Infiniti-specific experience – ask how many Q50s or G35s they’ve worked on recently.
  • Customer reviews – read recent feedback on Google, Yelp, or Infiniti forums.
  • Service range – do they offer tuning, suspension, and fabrication under one roof?
  • Warranty and support – some shops offer a limited warranty on labor; ask if tuning support is included post-install.
  • Facility cleanliness – a clean shop often reflects attention to detail.

It’s also smart to visit in person before committing. Look for specialized tools like lifts with alignment racks, a dyno, and a paint booth if needed.

Questions to Ask Before Booking

  • Do you have a dyno on site? If not, where will the tuning be performed?
  • What brand parts do you typically recommend for Infiniti? (avoid no-name generic parts)
  • Can you provide before-and-after dyno sheets from similar builds?
  • How do you handle check engine lights or immobilizer issues after tuning?

Reputable shops will answer these questions transparently. A link to Infiniti’s official performance parts can also help you understand what’s available off the shelf.

Tips for a Successful Customization Project

Building a performance Infiniti is an exciting journey, but a few best practices can prevent headaches:

  • Define your goals early – do you want a weekend track car, a reliable daily driver with extra pep, or a show-stopping build? This drives every decision.
  • Set a realistic budget – plan for 10-20% contingency for unforeseen costs (e.g., discovering a worn suspension component during install).
  • Communicate clearly – provide your shop with a written list of desired modifications, expected horsepower, and driving habits.
  • Request a detailed quote that includes parts, labor, taxes, and any sublet work (e.g., machine shop for cylinder heads).
  • Ask about part brands – cheap parts can compromise reliability. Look for recognized brands backed by warranties.
  • Check for certifications – some shops have ASE certifications or manufacturing partnerships (e.g., KW dealer, ECUTek pro tuner).
  • Plan for maintenance – after a big tune, oil changes and spark plug intervals may become shorter.

By following these steps, you minimize risk and maximize enjoyment. The Nashville tuning community is supportive – don’t hesitate to attend local meets to see other people’s builds and talk to the shop owners in person.

Final Thoughts on Infiniti Customization in Nashville

Nashville’s car scene offers Infiniti owners an embarrassment of riches when it comes to performance shops. Whether you’re after ECU tuning at Auto Performance Nashville, suspension magic at Vanguard Tuning, or a complete visual and mechanical transformation at Elite Auto Customs, there is a specialist for every goal. The key is to research thoroughly, communicate your vision, and trust the professionals who have built their reputations on quality work.

Your Infiniti has tremendous potential – with the right upgrades and the right shop, it can become a machine that not only turns heads but also delivers an exhilarating driving experience every time you get behind the wheel. So invest wisely, drive hard, and enjoy the thrill of a truly customized Infiniti right here in Nashville.