▷ Flexible exhaust valve applied inside of automotive muffler that operates the pressure of the exhaust gas to reduce the pressure of the exhaust gas, thereby reducing the noise and improving the output.
 
▷ The flexible exhaust valve for the muffler fitted to the vehicle exhaust system operates at temperatures of 400 ℃ to 600 ℃. Heat resistance and endurance and flexibility are important.
KOWEL Co. ltd produce nickel alloy spring that satisfying heat resistance, endurance and flexibility and apply it to flexible exhaust valve and produce the products. KOWEL Col.ltd ‘s flexible exhaust valve is applied in many vehicle muffler such as Hyundai, KIA, GM, Nissan
 
▷ Development and application of Flexible exhaust valve can be changed according to customer request. Also it can be proceed through the person in charge of Sales.