Using the Invidia G200 cat back exhaust is simple. First, turn off your car and let the engine cool down. Then, remove the old exhaust carefully. Next, install the Invidia G200 in place, making sure the exhaust hangers fit into the OEM locations. Once installed, start your car and check for any leaks. Note that if you're using the factory downpipe, you'll need a catback adapter. To maintain your exhaust, regularly check for loose bolts and clean it with a mild soap and water solution. Avoid using harsh chemicals that could damage the 304 stainless steel finish. With proper use and maintenance, this exhaust will serve you well for a long time.