GSC BRZ/FRS/86 Single Valve Spring Kit (5756) COBB By having 31 charge rows

By having 31 charge rows our intercooler has 62 heat transfers vs our competitors 48 heat transfer place which results in a greater heat transfer area

ETA from 10/1/2025 is about 12 weeks before these will be ready to ship

If you need to rebuild these later

25 Zinc Flange Nuts

GSC BRZ/FRS/86 Single Valve Spring Kit (5756) COBB By having 31 charge rowsGSC Power Division single valve spring kit for the Subaru BRZ, Scion FRS and Toyota 86 models. Includes 16 titanium retainers, 16 cylindrical valve springs and 16 spring seats. Vehicle Fitment: Subaru FA20D Toyota 4U GSE 2013+ Subaru BRZ 2013+ Scion FR S 2017+ Toyota 86 IN: 89 lbs @ 1. 279" EX: 88 lbs @ 1. 283" install height IN: 182 lbs @ 0. 846" EX: 181 lbs @ 0. 850" Includes: (16) Titanium Retainers (16) Cylindrical Valve Springs (16) Spring Seats