Using this ISR Performance exhaust is easy. First, make sure your car engine is off and cooled down. Then, carefully install the exhaust according to the included instructions. When it comes to maintenance, regularly check the exhaust for any signs of damage or loose parts. If you notice any rattling or unusual noises, it might be a sign that something needs attention. Also, keep it clean by washing it gently with mild soap and water. Remember, ISR orders typically take a day to process. If you need it faster, reach out to us right away.