There are companies that will insure nitrous on street cars, but as far as i know these are only for Highpower Nitrous Systems not NOS (Holley), Adrian Flux being one of them. I have noticed that alot of people are waking up and realising that nitrous WONT blow engines if used and fitted correctly!!! As for being a fire hazard where did you read that to!? I have seen nitrous put out a fire on a motorbike before (will try and find the video!). Sure the bottles can explode if under high enough pressure, BUT they should all be fitted with safety blow off disks that will dump all your nitrous instead of blowing up the bottle. Too much fast and furious bullshit scenes, dont get me wrong they are good films but they have to make it interesting to sell even if its not what really happens. Just helping to get the facts right, dont want to put off people buying nitrous because of false information.