The Nitron NTR R1 and R3 are high-performance suspension systems designed for the BMW G8x series, including the M2, M3, and M4 models. Renowned for their precision engineering and exceptional build quality, these suspension kits offer superior handling and ride comfort. The R1 model is ideal for road and occasional track use, providing a balance of performance and usability, while the R3 is geared towards serious track enthusiasts, featuring advanced adjustability for fine-tuning. Both models enhance the driving experience of the G8x BMWs, making them a popular choice among performance car enthusiasts.