Performance Springs is an Australian business based in Queensland. Since 1976 we have been wholesaling valve springs and valve spring retainers to engine reconditioning workshops , speed shops, wholesale automotive suppliers and performance cylinder head shops. We machine our Ti-Retainers in house and to order. Yes, no need to have 1,000 units made if you only require 100 units, small runs are our specialty down to 8 units if that’s all you require, we can accommodate your needs.