Originally Posted by
mattwoodcraft
i have been testing the the the OS speed 2060 pipe on my mg66 and moded 7 port , i like it alot ..... i will know after our next race meet when i will be racing against others , my 2072 for some reason the spring has pulled through which im not to chuffed about i will be repairing it for sure

There was a batch os pipes that had slightly too soft material + the original springs were a tad too short. I repaired mine by drilling new holes and installed longer Hobbytech springs and it's been all golden since