Description
Cobb Stage 1 Power Package Subaru BRZ Toyota GR86 2022 2026 COBBECUT001S1 PRO Vehicle Model_Lancer Evolution The GSC Dual Conical Valve The GSC Dual Conical Valve Spring Kit is a high performance upgrade built for the turbocharged Subaru EJ engine family (EJ20 EJ25) ✅ Improves Handling & Steering Response – Reduces deflection under load