Nashville's Top Challenger Redeye Performance Upgrades for 2024

Owning a Dodge Challenger Redeye in Nashville means you have access to a booming performance aftermarket scene. As 2024 unfolds, the city's top shops and tuners are offering a new wave of accessories that can transform your supercharged beast from a formidable street machine into a track‑ready monster. Whether you're looking to squeeze every last horsepower from the 797‑horsepower HEMI, improve cornering grip, or simply give your exhaust note a deeper, more aggressive voice, Nashville has the expertise and products to make it happen. This guide covers the most impactful upgrades available this year, where to get them installed, and what you need to know to make smart, safe modifications.

Every Redeye owner knows the car is already potent from the factory. But the aftermarket world offers precision‑engineered parts that unlock hidden potential while improving reliability and drivability. Below are the categories of accessories making the biggest splash in 2024.

Performance Exhaust Systems

Upgrading the exhaust is one of the most satisfying modifications you can make. A high‑flow exhaust system not only reduces backpressure, allowing the supercharged V8 to breathe more freely, but it also transforms the sound into a deeper, more menacing roar. Brands such as Borla, Corsa, and Magnuson offer systems specifically designed for the Challenger Redeye. Cat‑back systems are the most popular choice because they retain the factory catalytic converters and are relatively easy to install. Axle‑back systems offer a more subtle change, while full header‑back systems deliver the biggest gains in horsepower (10–20 hp) but require more extensive work.

In Nashville, shops like Nashville Auto Performance carry multiple exhaust brands and can help you choose based on sound preference and performance goals. Many systems now come with electronic valves that let you toggle between quiet and loud modes, a welcome feature for daily driving. For pure power gains, pairing a free‑flowing exhaust with a cold air intake and a custom tune is the trifecta that many local tuners recommend.

Cold Air Intake Kits

A cold air intake is one of the simplest bolt‑on upgrades that yields measurable results. By replacing the restrictive factory airbox and routing a larger intake tube to a high‑flow filter, these kits reduce inlet air temperature and increase airflow. The result is improved throttle response and a seat‑of‑the‑pants power increase. Brands such as K&N, AFE Power, and Mopar offer direct‑fit kits for the Redeye. Some kits, like the Roto‑Fab system, include a sealed box that draws air from the front grille, keeping intake temps low even on hot Nashville summer days.

Dyno tests on stock Redeyes show gains of 8–12 hp and similar torque improvements. The installation is straightforward, usually taking an hour or less with basic tools. Most Nashville performance shops stock these kits and can install them while you wait. For maximum effect, a cold air intake should be combined with an exhaust upgrade and a proper ECU tune.

ECU Tune and Software Upgrades

One of the most transformative upgrades you can make is recalibrating the engine control unit (ECU). The factory tune leaves some power on the table for safety margins and emissions. A custom or off‑the‑shelf tune can safely increase boost pressure, adjust fuel tables, and optimize ignition timing. Local tuners such as Vivid Performance in Nashville specialize in Chrysler’s SRT vehicles and use tools like DiabloSport’s Trinity 2 or HP Tuners to rewrite the ECU. A custom tune from a reputable shop can add 20–30 hp and similar torque on a stock Redeye, and even more when combined with other modifications.

Handheld programmers are also popular for owners who want the ability to swap between tunes (e.g., a daily driver tune and a race gas tune). Be aware that tuning may void your powertrain warranty, so it’s essential to work with a trusted shop that understands the limits of the Redeye’s 2.7L supercharger and internals. Nashville’s tuners also offer remote tuning via email, so you can get the benefits without leaving your garage.

Suspension Upgrades for Better Handling

The Redeye is a heavy car, and while its straight‑line performance is legendary, the suspension can benefit from upgrades that reduce body roll and improve traction. Lowering springs or coilover systems from brands like Eibach, BC Racing, and KW Suspensions are popular in 2024. They lower the center of gravity, reduce squat under acceleration, and sharpen turn‑in response. Adjustable coilovers allow you to fine‑tune dampening for both street comfort and track performance.

Another key upgrade is swapping to stronger sway bars and adding adjustable control arms. These parts help keep the wide tires planted during hard cornering. Nashville shops like Carolina Customs Nashville carry suspension kits and have the expertise to perform alignment and corner weighting. A well‑sorted suspension not only improves lap times but also makes the car more confidence‑inspiring on winding roads outside the city.

Pulley and Supercharger Upgrades

For Redeye owners chasing serious power numbers, the easiest way to increase boost is with a smaller supercharger pulley. A 2.85‑inch or 2.75‑inch pulley (versus the stock ~3.0‑inch) can raise boost from the factory 11.6 psi to around 13‑14 psi. This typically requires supporting modifications such as larger injectors and a fuel system upgrade to handle the additional air. Many tuners in Nashville recommend pairing a pulley swap with a high‑flow thermostat and a water‑methanol injection kit for knock resistance.

Brands like RDP (Race Development Performance) and HHP (High Horse Performance) offer pulley kits that include the necessary hardware and a new belt. Installation is best left to professionals because improper belt tension can damage the supercharger. A well‑executed pulley swap plus a custom tune can push the Redeye to over 800 horsepower at the wheels. Local shop Vivid Performance has completed dozens of these builds and can provide baseline dyno runs to document gains.

Wheels and Tires for Maximum Grip

Stock Redeye wheels are heavy, and the factory Pirelli tires have limited traction, especially from a stop. Upgrading to lighter forged wheels reduces unsprung weight and improves acceleration, braking, and handling. Brands like Forgeline, Weld Racing, and American Racing offer wheels that clear the massive Brembo brakes and fit the Redeye's bolt pattern. Many owners choose a square setup with wide tires (305 or 315 section) for better cornering balance, while drag racers prefer a staggered setup with skinny front tires and massive rears (e.g., 315/35R20 or even 17‑inch drag radials).

Tire technology continues to improve. In 2024, Mickey Thompson ET Street R and Nitto NT555 R2 are top choices for street‑legal drag radial performance. Local tire shops in Nashville can mount and balance them, but for alignment and proper setup, a performance shop is recommended. Lighter wheels and sticky tires can shave a few tenths off your quarter‑mile time and make the car far more engaging to drive.

Where to Find These Accessories in Nashville

Nashville is home to several well‑known automotive performance centers that stock parts for the Challenger Redeye and have installation bays and dynos. Here are the top destinations:

  • Nashville Auto Performance – Specializes in exhaust systems, cold air intakes, and bolt‑on modifications. They have a large showroom with Borla, Corsa, and K&N products on display.
  • Vivid Performance – The go‑to for ECU tuning, pulley swaps, and engine builds. They use DiabloSport and HP Tuners for custom calibrations and have a Dynojet chassis dyno.
  • Carolina Customs Nashville – Offers a wide range of performance parts, including suspension kits, wheels, and forced induction components. They also do full custom fabrication work.
  • Street & Strip Performance – Focused on drag racing preparation, they stock drag radials, lightweight wheels, roll bars, and drivetrain components. They also perform axle upgrades for high‑horsepower builds.

Before buying, verify that any shop you choose has experience specifically with the Challenger Redeye. The model has unique electrical and cooling requirements, and a mistake can lead to costly repairs. Many shops offer free consultations and dyno tuning sessions for new customers.

Installation and Tuning Considerations

Upgrading a Redeye is not just about buying parts; proper installation and tuning are critical to reliability. Here are key guidelines for 2024:

  • Start with a plan. Decide if you want a mild street upgrade or a full race build. This affects part compatibility and budget.
  • Use quality parts. Cheaper imitations often fail, especially on a supercharged engine. Stick with reputable brands and buy from authorized dealers.
  • Always tune after major changes. Installing a cold air intake or exhaust might not require a tune, but a pulley, cam, or headers definitely does. A bad tune can cause detonation and engine damage.
  • Monitor engine parameters. Consider adding a boost gauge, wideband O2 sensor, or air/fuel ratio gauge to ensure everything is safe. Many handheld tuners offer data logging.
  • Check local laws. In Nashville and the state of Tennessee, some modifications (like removing catalytic converters) violate emissions regulations. Ensure your car remains road‑legal unless you plan to trailer it to the track.

This year, several trends are emerging in the Challenger aftermarket. First is the integration of smart technology – many tuners now offer Bluetooth‑enabled handhelds that let you switch maps on the fly via smartphone app. Another trend is the move toward E85 flex‑fuel tuning, which allows boost increases and more aggressive timing for a big power gain. Nashville has several E85 pumps, making it a viable option for local owners. Finally, carbon fiber components such as hoods, spoilers, and interior trim are becoming more affordable and widely available, reducing weight and improving aesthetics.

Conclusion

2024 is shaping up to be a fantastic year for Challenger Redeye owners in Nashville who want to push their cars to the next level. From the throaty sound of a high‑flow exhaust to the adrenaline rush of a pulley‑boosted launch, the upgrades available are both effective and accessible. The key is to work with knowledgeable local shops that understand the Redeye’s platform, invest in quality parts, and never skip the essential tuning step. Whether you’re aiming for a faster quarter‑mile time, better cornering, or simply a more thrilling daily drive, Nashville’s performance scene has everything you need. Take the time to research, consult experts, and join local clubs or forums to see what other owners are doing. Your Challenger Redeye is already a classic American muscle car – with the right accessories, it can become a truly unique and fearsome machine.