These nicely crafted top mount spacers will lift the shock/spring assembly by 10mm and 13mm lift is expected to the car ride height. Being made from duralumin they are very strong, but lightweight with less than 100g per corner.
You will need them, if you have coilovers or springs, that are too low, even in their highest position. The top mount spacers are the way to keep them by adding the mm's missing to freely pass the speedbumps on the way home.
Please note, the 10mm version will not work with strut braces as of the top mount stud length. We also have 8mm version, which is compatible with strut braces. None of the versions works with the very early 1.6 models with the extra short studs.
They are sold as pairs (for an axle), you will need to order 2 sets for all four corners.