Every spring produced by H&R comes from the H&R ISO 9001 certified engineering and manufacturing facility in Germany. All H&R springs are produced from a special 54SiCr6 spring steel, which has strength rated at 290,000 psi resulting in unrivaled tensile strength and resiliency. For some, the idea of upgrading a vehicle with performance suspension sounds appealing, but a noticeably lower ride height and slightly firmer spring rates don't.
Fits: BMW 135i/335i/535i (N54). Confirm fitment with us before ordering.
