Australian company BSRC have introduced new carbon fibre option parts in the form of rear chassis brace inserts for the HB Racing D817/T and A-arm stiffeners for D817, E817 and Mugen Seiki MBX8. First up are the rear chassis brace inserts. Designed to stiffen up the rear of the car, they provide more rotation and generate more corner speed on high traction surfaces. Next up are the A-arm stiffeners. Machined from 1.0mm thick carbon fibre, they stiffen the arms to provide better performance depending on the surface traction and ambient temperatures.