The HKS 65mm stainless steel mid-pipe is made for 2008 STI applications and accepts a 65mm flow diameter. It is intended for use only with HKS part hks31021-AF012 or the stock muffler, ensuring proper fit and exhaust routing in compatible setups. This mid-pipe provides a direct replacement option where HKS compatibility or factory muffler use is required.
HKS 2008 STi 65mm Stainless Steel Mid-Pipe (only compatible w/ hks31021-AF012 or Stock Muffler)