How to use: First, make sure your vehicle's engine is cool. Then, carefully remove the old radiator hose and replace it with the AS3 Performance silicone radiator hose. Ensure it's properly connected to the radiator and other relevant parts. Notice: This hose is only for off - road and track use, don't use it on public roads. Also, avoid sharp objects near the hose to prevent punctures. Maintenance: Regularly check the hose for any signs of wear or damage. Clean it gently with a mild soap and water solution if it gets dirty. If you find any issues, contact the manufacturer for assistance within the 12 - month warranty period.