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Catalytic Exhaust 3SX-GX390 Purifier / Air Scrubber Honda GX390 Overview Description   Summary: Purifier mufflers are designed to replace the Original Equipment Manufacturer (OEM) muffler system. Purifier mufflers are the most desirable option for a large variety of applications available for both diesel and gas engines. Purifier mufflers are designed to receive the maximum amount of exhaust heat energy in order to operate at high efficiency (80% to 90%+). The difficulty and time required for installing a custom purifier muffler is minimal, simply remove the stock muffler and replace with the similarly designed purifier muffler. Overall a purifier muffler will provide the most efficient reduction, the easiest installation, the least engine downtime and the most reliable operation. The Major Catalytic Oxidation Reactions which Occur are: For Oxides of Nitrogen NOx + CO → N2 + CO2 NOx + H2 → H2O + N2 For Carbon Monoxide CO + O2 → H2O + N2 For Hydrocarbons HC + O2 → CO2 + H2O Features: 1.High Efficiency “Tortuous” Flowpath Catalytic Core Our Purifier/Mufflers feature a unique “tortuous” flowpath catalytic core, incorporating a curved mixed flow cell design. This takes advantage of the physical properties of harmful pollutants, increasing contact with the catalytic core surface. By promoting the contact between harmful pollutants and the catalytic core the “tortuous” flowpath core design is superior in reducing harmful pollutants produced by the engine. 2.High Quality Catalytic Coating Our Purifier/Mufflers feature a high quality platinum-rhodium coating, which is very carefully distributed upon a uniform high porosity wash coat. The high quality coating provides long life, increases cold start performance, and enhances thermal durability of the catalyst. The net results are high efficiency catalytic reactions, which lead to very low exhaust pollutants when used in conjunction with the recommended leaner carburetor jetting. 3.Superior Thermal and Physical Strength Our Purifier/Mufflers are constructed of high temperature tolerant, corrosion resistant, stainless steel alloys. Thick stainless steel alloy retainers are used to provide support and stability for the inlet and outlet faces of the metallic core. Our Purifier/Mufflers use inlet flow diverters for even exhaust flow distribution and improved operating efficiency. 4.Low Exhaust Gas Restriction Our Purifier/Mufflers feature high strength, ultra-thin metallic core walls. These allow a minimal exhaust gas restriction during operation, even under high load/speed operating conditions. The exhaust gas backpressure restriction will be in the order of 6.0” to 9.0” water gauge at full load. 5.Easy Installation Our Purifier/Mufflers are a direct fit muffler replacement designed for ease of installation. Simply remove your current muffler and install the Purifier/Muffler directly in place of the old one.

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