An FR-S or BRZ supercharger kit costs four grand before it teaches you about heat soak, knock margin on a 12.5:1 FA20, and cracked ring lands. Tires and seat time first. Send this to the BRZ owner with a blower in his cart. #ThreePieceUS #cars #wheels #BRZ #FRS #GT86 #FA20 #supercharger #heatsoak #GR86 #carmods #trackday