HKS Super Manifold with Metal Catalyzer GT-Spec - GT86, BRZ i30N By following this requirement

By following this requirement

Building upon the 3 decades of suspension development and 9 years since the last version of Hipermax IV GT release this series has unified the many different street based Hipermax merits and further improved this new flagship series for the ultimate combination of driving performance and comfort performance

with a replacement cast turbo inlet adaptor

In addition

With one of the weak links on the i30N and Veloster's intake system being the restrictive aluminium inlet pipe

HKS Super Manifold with Metal Catalyzer GT-Spec - GT86, BRZ i30N By following this requirementThis item is a direct replacement for the highly restrictive factory catalytic converter and exhaust manifold. Superior materials and design with honeycomb structure metal catalyzer allows for high flow of exhaust while keeping exhaust gases clean. Smooth flowing mainpipe with enhanced diameter allowing engine to exhale the hot exhaust gases more efficiently improving engine response and increasing power and torque throughout the whole power band. In