Your Isuzu exhaust system is made up sensitive and complex components such as manifold, header, air pump, converter, muffler valve and exhaust tip and pipe gasket. All of these parts are vulnerable to weather conditions and hard knocks on the road because of their position on the underbelly of your engine. For that reason, a tough winter that brings salt, moisture, dirt and extreme temperatures can be very rough on exhaust parts such as the muffler and pipe. Or, worn out brackets, hangers, clamps and heat shields might be knocked loose from road debris. Make it a point to visually inspect your exhaust system after every winter to see how the parts have fared. An annual inspection of your Isuzu exhaust components is a good investment, as well as a common-sense safety measure - since loose components might be a hazard to yourself and others on the road. Your Isuzu exhaust components are vital to the health and vitality of your engine, after all. They provide proper exhaust flow, silencing and emission levels. Worn-out exhaust parts will mean weak horsepower and lower gas mileage. Or, the engine might be noisy and idle roughly. Your car might emit excessive pollution and odors. All of these are signs that it's time to replace these parts with genuine Isuzu components bought at car-stuff.com.