hi this might sound a bit daft, but just been looking at my car and was checking my tyres when i noticed a mark on the spring, and when i rubbed the dirt away was a purple dot and so a cleaned them a bit more and there was a blue dot i was just wondering if these are standard springs and if not what are they, also my intercooler hose is red and i thought they where blue with the prodrive pack fitted. any comments or answers would be great cheers aaron