Bilstein B3 OE replacement coil spring for 2004–2007 BMW 525i front is an OE-spec replacement manufactured to match original dimensions and spring rates. Built from durable chrome alloy steel and hot-set after forming to avoid height loss, these springs aim to restore suspension performance, ride height and safety consistent with factory specifications for the listed model years.
Bilstein 04-07 BMW 525i B3 OE Replacement Coil Spring - Front