Mm 30-35 or or Lowering ca. 4x Eibach Lowering spring E20-20-001-01-22. Eibach sportline lowering suspension springs 4 pcs bmw 3 series +coupe e46 eibach sportline springs are manufactured just as accurately as the pro-kit springs and therefore achieve the legendary driving performance through an extraordinary sporty lowering of the centre of mass and by using precisely engineered progressive spring rates.