We originally built these bushings for our own in house race cars and made a couple of extra sets to make it worth the time to set them up. These bushings are a direct fit for mk4 and mk5 mounts and replace the upper and lower bushings in the mount while retaining the rest of the mount body/structure. Due to the machining inconsistencies from original manufacturing from vf engineering some of the bodies vary +/-.015" or more in center dowel size you may have to slightly sand down the original vf piece or it might have a tiny bit of play in it until the mount is completely assembled. We have no experience a scenario where we had to modify the vf base, but this is a warning if it does come up with a customer. This is not something that we can control because the original mount manufacturer did not have to hold the part to a tight tolerance since a rubber/polyurethane can stretch/squish into an inconsistent part and still do its job. We have built these mounts based off of brand new and used motor mount measurements to provide the most consistent bushing so you will be able to drop them in without issue. These are not going to be a good choice for the average owner driving the car every day, this will transfer lots of vibration into the cabin but linked with a solid dog bone mount they will perform very well in racing environments. Price is per side, you will need to place and order for a quantity of 2 for a complete mk4/5 and you will receive 4 bushings, 2 for each mount.