Application:.For 98-06 BMW 3 Series E46 (non-M3).Specification:.The one must have for all E46 drifters!!!.They are installed as a hub spacer, between the knuckle, wishbone and tie rod.Installation is relatively simple, but minor adjustments may be needed.Adapter that increases the turning angle by 25% in made by milling in aluminum ,which has the same durability as steel and for this reason is widely used in aircraft industry.That modification will result in better control over steering , especially while a controlled slide, and also will result in higher entry angles versus the direction of driving.Sold per pair, with required fittings, these are intended for use with non-M3 E46 only!