Do not bring any mechanic damage to the catalityc agent.
Do not use sand-blasters or other devices to clean the catalyst. Otherwise its damage is possible.
Try to use reserve spark plugs kit, if you do not plan to use nitrous oxide for a long time.
Spark plugs with attached catalityc agent should be cleaned every 2000-3000 miles. Clean the plug from the fuel
deposits. Use soft sponge with a drop of detergent.
Русская версия
Nitrous oxide catalyst
Nitrous oxide catalyst manual
Do not bring any mechanic damage to the catalityc agent.