Why does some 350Z have 2 air intakes and some only have one?

The Nissan 350Z features different air intake configurations primarily due to variations in engine models and trims. Some models, such as the more performance-oriented versions, may utilize a dual intake system to enhance airflow and improve engine performance. In contrast, base models or those with different engine configurations might only have a single air intake. This design choice reflects the manufacturer's aim to balance performance, cost, and efficiency across the various trims.