BMW have stock of the left passenger side - changed mine last night - took about an hour. Cost £12.46 with my discount included. The longer one is out of stock on back order and will not be delivered until March 2018. BMW AG are out to tender for new fabrications and will have samples back in the January/February time frame for quality control and if ok expect stock in March. The longer one will cost £22.68 after discount. The right hand side can be changed without dropping the sub frame on your back on the drive if raised up well on axle stands as long as you bend it a bit and have patience. No need to cut. I have removed mine, re rubbered it and refitted it. I used a roll of self adhesive rubber that is better quality than BMW’s rubber and I used a continuous length along the whole strap. I do however want to replace it as it was rusty and after shot blasting and painting it is thinner and weaker than it should be.