this pipe mounts to the motor so you will not have any chassis flex issues compromising the pipe , it is a two piece pipe design and there is no hacking to the body only a small hole needs to be made for the exhaust outlet in the plastic side guard. This is the Losi MTXL pipe with a plated finish , it will be made the same day you order it but will take a extra day to be plated it is a no leak two piece design that mounts solely to the motor to insure the release of vibration without putting stress on the pipe due to chassis flex, it can be ordered in silenced or non silenced and will double your power in all three power bands