The HKS Inner Silencer provides an easy way to lower the sound output level on your HKS Hi-Power Exhaust System. Simply bolts right on to the pre-existing holes on the muffler tip. 100% genuine HKS product. Part# 3306-RA072. Made by HKS Co., Ltd. Japan.
Fits HKS Hi-Power Exhaust with 94mm / 3.75" muffler tip.
