Best Nissan Z Mods: 5 Upgrades Every RZ34 Owner Should Consider

So you just picked up the new Nissan Z (RZ34), and you're already itching to take it up a notch. Good. Because while the factory setup is solid, this platform begs for mods. Whether you’re chasing sharper handling, better power delivery, or just a more aggressive sound, the right upgrades will transform your Z into the car it should’ve been out of the box.

Here are our recommended best Nissan Z mods that give you the most impact per dollar:

1. Front & Rear Sway Bars – No More Body Roll

The stock Z leans more than it should, especially in corners. This might be comfortable, but you’re driving a JDM sports car; that thing needs to be a bit more precise and less wallowy. Upgrading your front and rear sway bars tightens up side-to-side motion, giving you flatter cornering and way more confidence behind the wheel.

Whether you’re hitting backroads or tracking on weekends, upgraded sway bars instantly make the car feel more planted. It’s one of those upgrades where you’ll feel the difference every time you turn the wheel.

• Whiteline – Great all-around balance for street and performance

• Eibach – Perfect for OEM+ handling feel

• Hotchkis – Popular with track enthusiasts for sharper response

2. Coilover Suspension – Precision and Stance

If sway bars clean up lateral roll, coilovers handle the front-to-back drama. Acceleration squats, nose dives under braking, and stock gaps between the tire and fender are all fixed by coilovers.

Image: Fortune Auto

Beyond the performance benefits, adjustable coilovers also let you dial in your ideal stance and precise handling. Daily drive it, track it, or just flex at cars and coffee—you'll get both function and form.

• KW Variant 3 (V3) – High-end street/track performance with adjustable damping

• Fortune Auto 500 Series – Custom-built in the USA with excellent ride quality

• BC Racing BR Series – Affordable, reliable, and fully adjustable

3. Cat-Back Exhaust + Downpipes – Add Growl & Power

Want your Z to sound as good as it looks? A refined cat-back exhaust like the AWE Touring cat-back gives the perfect tone—deep, sporty, and clean with zero annoying drone. It also frees up some horsepower as a bonus.

Pair it with a set of high-flow downpipes, and you'll have even more power. The throttle response sharpens a bit, and the overall feel becomes much more alive.

Image: AWE Tuning

• AWE Tuning – Touring Edition cat-back for streetable performance

• Z1 Motorsports – High-flow downpipes built specifically for the RZ34

• AMS Performance – Race-ready options with max flow—but check legal limitations for noise levels.

4. ECU Tune – Real Horsepower You Can Feel

The VR30 twin-turbo under the hood has so much untapped potential. A proper tune unlocks serious horsepower and torque—sometimes 60 to 100+ HP depending on your setup.

Not only does a tune crank up the power, but it also makes the engine more responsive throughout the entire rev band. Whether you go with a plug-and-play piggyback module or a complete custom ECU flash, this is hands-down one of the most rewarding mods you can do.

• AMS Performance – Known for safe, aggressive VR30 tuning

• Boost Logic – Serious gains for street or track use

• HKS – Trusted Japanese tuning brand with decades of racing heritage

5. Performance Tires – Don’t Sleep on This One

If your tires can’t grip, what’s the point of having more power?

A fresh set of ultra-performance tires is a game-changer. Think Michelin Pilot Sport 4S or something similar. Better cornering, better launch, better stopping—period. Most Z owners say this is one of the best mods that transforms the way their car drives.

• Michelin Pilot Sport 4S – The gold standard for street performance

• Continental ExtremeContact Sport – Excellent grip and comfort

• Bridgestone Potenza RE-71RS – Maximum grip for track warriors

Wrap-Up Your Build with the Best: Fukin Tuned

You can have all the power in the world, but if you rely on stock throttle response, some things will feel off. To wrap up everything perfectly, you need an instant gas pedal response. The fix comes from the Fukin Tuned throttle response controller!

Fukin Tuned throttle response controller kills the delay of the stock drive-by-wire gas pedal, giving you sharper response right when you want it. You can fine-tune the throttle response for more dynamic daily driving, all-out aggression, or even to save some fuel in between your spirited runs.

With four preset modes—Fukin Slow, Fukin Cruise, Fukin Fast, and Fukin Send It—each offering nine sensitivity levels (for a total of 36 configurations), you can match throttle feel to every scenario, from trackdays to spirited canyon runs, or even a relaxed highway drive. Plus, it leaves no ECU footprint, so your warranty stays intact.

Fukin Tuned is 100% plug-and-play, no cutting wires or specialized tools needed. It stays out of sight and is controlled completely wirelessly through your smartphone.

And that’s not all. It comes with a built-in Anti-Theft feature that lets you disable the gas pedal entirely—perfect for added peace of mind whenever you need. The Anti-Theft feature is FREE to try for the first 14 days, and then only costs $0.99 a month or $9.99 a year.

Get your Fukin Tuned throttle response controller today and unlock the real power of your tuned Nissan Z!