The HKS front pipe with integrated metal catalyzer is a direct‑fit unit for 2020‑present GR Supra models equipped with the B58 engine. Presented as a replacement front‑pipe assembly that includes a metal catalyzer, the part is intended to fit B58‑powered Supra applications without broad claims beyond the explicit vehicle fitment and integrated catalytic hardware noted in the source description.
HKS 2020+ GR Supra B58 - Front Pipe w/ Metal Catalyzer