The HKS Legamax Premium main section specified for the WRX S4 serves as the Legamax Premium exhaust main component intended to integrate with that model's exhaust system. Presented as the primary mid/main section, it provides an OEM-compatible replacement piece to complete a Legamax Premium setup for WRX S4 applications while maintaining the branded Legamax fitment approach without adding speculative performance claims.
HKS LEGAMAX Premium VBH WRX S4 (Main)