Federal-Mogul has developed a special exhaust-insulating sleeve called Therm ex. The sleeve traps heat within the exhaust system to improve the efficiency of the emissions-control systems such as catalysts and diesel-particulate filters (DPF). Package requirements of exhaust systems in modern vehicles leave very little room between the exhaust and vehicle body. The sleeve will also protect nearby components from damage caused by heat radiation. Fitting the sleeve over an existing design is easy because the mesh construction allows the sleeve to expand up to one-and-a-half times the intended diameter and it can accommodate bends and exhaust joints. The sleeve is manufactured from basalt yarns and is heat-resistant up to 750 degrees Celsius. Automaker are desperate for any technology that can give them even a fractional improvement in emissions performance. Therefore, look out for a wrapped exhaust system on your new vehicle soon.
Exhaust-insulation sleeve
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