Using this Invidia exhaust is simple. First, make sure your car is parked on a flat surface and the engine is cool. Remove the old exhaust carefully following the standard procedures. Then, install the Invidia exhaust. The exhaust hangers are welded at OEM locations, so it should fit directly. After installation, start your car and check for any abnormal noises. As for maintenance, regularly inspect the exhaust for any signs of damage or loose parts. Since it's made of titanium, it's relatively durable, but it's still a good idea to keep it clean. If you notice any issues like rattling or changes in sound, it might be a sign that you need to check the gaskets or hardware. And remember, if you're using the factory downpipe, always have the right cat - back adapter on hand.