33005-AT010
Upgrade your GR86/BRZ with the HKS Super Exhaust Manifold/Header GT‑SPEC — a high-performance stainless steel header with an integrated metal catalyzer. Engineered to improve exhaust flow, increase mid-range torque, and deliver sharper throttle response while maintaining emissions compliance in regions where allowed.
Integrated High-Flow Metal Catalyzer: Reduces backpressure compared to the factory ceramic catalyst while still meeting emissions standards.
4‑2‑1 Equal-Length Design: Precision-engineered primary runners optimize exhaust scavenging for smoother, more efficient power delivery across the RPM range.
Optimized Flange & Flow Geometry: Custom flanges and pipe transitions minimize turbulence and restrictions for maximum exhaust efficiency.
Premium Stainless Steel Construction: High-grade material resists corrosion and withstands high temperatures common in performance applications.
Enhanced Exhaust Tone: Provides a slightly more aggressive, refined exhaust sound while still retaining legal catalytic compliance where permitted.
