
Before diving into upgrades, it’s critical to ensure your VR30 is in top-notch condition. Worn spark plugs, clogged air filters, or old engine oil can hold back performance. Check the spark plugs for wear, as they’re essential for efficient combustion. Infiniti recommends replacing them every 60,000 miles, but you might need to do it sooner if you’re pushing the engine hard.
Pay close attention to your air filters and engine oil. A dirty air filter restricts airflow, reducing performance and efficiency. Swapping it for a clean OEM or high-flow aftermarket filter makes an immediate difference. Similarly, use high-quality synthetic oil and stick to the recommended oil change intervals to keep the engine’s moving parts in peak condition.

Upgrading to a high-performance exhaust system can improve flow and free up horsepower. Look for a cat-back or turbo-back exhaust system designed for the Q50/Q60.
Brands like MBRP and Invidia offer systems that not only enhance performance but also change the sound of the engine.

If you’re chasing serious power, you’ll need to address the VR30’s fuel delivery system. The stock fuel pump and injectors are sufficient for moderate tuning but may fall short under higher boost levels or advanced tunes.
Consider upgrading to a high-pressure fuel pump and larger injectors to ensure your engine gets the fuel it needs. This is particularly important if you’re planning to run ethanol blends like E30 or E85.

The VR30’s twin-turbo setup generates a lot of heat, especially when pushing the engine hard. High temperatures can lead to heat soak, reducing power output and causing potential long-term damage. Upgrading the cooling system is essential for sustained performance.
Start with a better intercooler. An upgraded heat exchanger from brands like AMS and PLM can keep engine temperatures under control during spirited driving or track days. This improved cooling efficiency will help your turbos maintain peak performance.

A tune is one of the most transformative upgrades you can make. The VR30’s ECU is conservative in its stock form, leaving untapped performance on the table. A custom tune adjusts the engine’s parameters to maximize power, torque, and efficiency.
Get a professional VR30 tuning from a company like Racebox. A professional tuner can tailor the tune to your specific modifications, whether you’re running a stock setup or have added intakes, exhaust, and upgraded cooling.