HKS 31013-BN001 Cat-Back Exhaust (95-98 240Sx Sport), 1 Pack HKS has participated in many racing tournaments and accumulated the wide knowledge of automobile parts for the best performance As a total tuning products manufacturer, we have deep and wide know-hows in the EXHAUST technology When the development team looked carefully at the details, the ultimate conclusion they drew was to look at the core purpose of the cam itself