I have not really looked at a Firestorm mate....if it's built anything like a Mt2 it should be ok. However with it being only 2 wheel drive....you may have the same problem the Jato has.....you can't steer a lorry with the tyres in the air. Actually now that I look at it closer with the engine being mounted sideways you would have plenty of room in the back....the exhaust may be a bit buggersome since it would have to be a smidge low profile.