This, in turn, helps generate heat more quickly to vaporize the fuel during cold starting. The valve should be checked and lubricated periodically to make certain it is free. Pipes may be aluminized steel, using single or double-wrap construction. Double-wrap is more effective in reducing noise. Piping and connections should be inspected for rusted out areas and damage.
Catalytic converters change harmful pollutants in the exhaust into harmless gases.
In operation, these gases pass over a large surface area coated with a catalyst. Because this process creates additional heat in the exhaust system, special heat shields are used to protect the underbody of your vehicle. Under proper conditions, a converter has a long life, and will last 50,000 miles or more provided it is not exposed to leaded fuel or damaged in other ways. The muffler dampens the exhaust sound of the engine. The Reverse Flow Muffler uses a series of baffled chambers to reduce the sound.