Explore a focused range of Tamiya TRF421 parts and upgrades engineered for competitive touring car racing. This category brings together essential components including the TRF421 Alloy Chassis for improved rigidity, the RW 88 T Touring Car Spur for drivetrain precision, and dedicated cooling solutions such as the 1 S/2 S Fan Booster, 30 mm TC Big Air Fan, and 30 mm TC Fan Shroud to keep electronics running at optimal temperatures. Whether you are building, maintaining, or fine-tuning your TRF421 touring car, every product here is selected to support consistent track performance and long-term reliability.