Leading manufacturer of
aftermarket hot end emission
products

  • UNIVERSAL TYPE CATALYTIC CONVERTER

    The Universal type converters can be installed in almost any vehicles, as long as the diameters of the inlet and outlet tubes are the same on the converter and the exhaust system. Because of its wide installation, we build different emissions EPA, PRE-OBD, OBDI, OBDII, OBDIII, EURO2-EURO6 to meet the exhaust gas performance requirements.

  • DIRECT-FIT AND MANIFOLD CATALYTIC CONERTER

    THREEWAYs Exhaust Manifold with Integrated Catalytic Converter has thick OE-style flanges for greater strength and OE-style routing for straightforward installation. Hangers and sensor fittings are included if required by application. It features leading-edge washcoating technology to ensure premium performance.Direct-Fit Catalytic Converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications.

  • DIESEL PARTICULATE FILTERS

    The Diesel Particulate Filter (DPF) is an integral component for diesel trucks and helps to maintain the proper performance of the diesel engine. Essential for keeping harmful emissions out of the environment. THREEWAYs DPF unit thoroughly removes diesel particulate matter and soot to provide better overall gas mileage and increased vehicle power. THREEWAYs DPF is a direct replacement for an exact fit and includes all the required gaskets and mounting hardware needed.

  • HEAVY-DUTY TRUCK DPF & SCR SYSTEM

    THREEWAYs aftermarket DPF and SCR products are designed and manufactured as a direct replacement to most common OEM filter system, can easily remove and installation. Includes OEM quality clamps and gaskets. All metal parts are made from high quality stainless steel for increased durability.