I run Ground Control parts on my drift Camaro. Custom Length/Rate springs by Suspension Springs Specialists, and Custom valved shortened Carrera dampeners. Most brands out there are good enough for a drift application, though it depends on how you want to tune the car. I would recommend staying away from progressive rate springs. And if the dampeners are adjustable its a plus (you can experiement). Also, make sure your bushings are all in good shape. Makes a big difference hehe.