HKS Super Manifold with Metal Catalyzer GT-Spec - GT86, BRZ i30N Maintain proper braking performance operation

Maintain proper braking performance operation under hard braking applications

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

and replaces it with our smooth bore multi-ply silicone hose which increases air flow

namely it was observed that cars over 450bhp were randomly getting errors from the stock solenoid dump valve not functioning

By following this requirement

HKS Super Manifold with Metal Catalyzer GT-Spec - GT86, BRZ i30N Maintain proper braking performance operationThis 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