Tresrey DEX410 30g weight
Shown in CAD form back in October, Japanese company Tresrey have released this brass weight for the Durango DEX410 and 410R. Weighing in at 30 gram it can be mounted to under the rear gearbox to help improve rear traction and is specifically shaped to fit snugly into the car.
Source: Tresrey [tresrey.com]