I suppose the Mikalor might be alright. it was just a thought/experience with one of the clips that was on the oem pipes but they didnt stick up thes wer flush/curved with the clips so pinching them together to get it loose enough to get the pipe of was a biatch. if the external diamter of my 8mm vacuum pipe is 12mm should i get 12mm clips or 11mm be a tight bite?