HKS 12-19 Subaru BRZ/Scion FR-S/Toyota 86 Extension Kit w/ Catalytic Converter

The HKS Extension Kit with Cat for the Toyota 86, Subaru BRZ, and Scion FR-S is an exhaust component designed to optimize flow and boost response. Featuring an innovative design that utilizes separate main and bypass ports for the turbine exhaust and wastegate actuator, this kit minimizes exhaust gas interference. The use of a divider in the exhaust flange prevents exhaust gas mixing within the housing, resulting in smoother exhaust flow, reduced backpressure, and improved turbocharger responsiveness across the RPM range. Constructed with high-quality materials, the extension kit enhances overall performance and durability, making it suitable for enthusiasts seeking precise exhaust tuning.

This extension kit is compatible with 2012 to 2021 models of the Toyota 86, Subaru BRZ, and Scion FR-S, fitting vehicles equipped with stock turbines. It serves as an upgrade or replacement component for improved exhaust efficiency and boost control. Installation involves connecting the pipes toward the lower part of the extension housing, ensuring proper alignment and sealing. The kit includes the necessary piping and flange components, making it suitable for street and track applications where optimized exhaust flow and turbo response are desired. Proper fitment and installation are essential for achieving the best performance gains.