Swift Springs Spec-R Lowering Springs – BMW 335i (E90/E92/E93)

OVERVIEW

Swift Springs' Spec-R line is built around the company's signature small-ID, high-travel spring design, giving a linear rate through more of the spring's travel than a typical high-ID lowering spring. For the BMW 335i (E90/E92/E93), the Spec-R kit drops ride height while keeping the factory damper valving in a usable range for street and light track use.

SPECS

• Front spring rate: 4.0 kgf/mm
• Rear spring rate: 11.0 kgf/mm
• Front drop: approx. 1.0 in
• Rear drop: approx. 0.8 in
• Swift small-ID, high-travel spring construction

PARTS INCLUDED

• Front and rear Spec-R lowering springs (set of 4), as supplied by Swift Springs

TECH RESOURCES

Required Parts

• None. Swift Springs specifies no additional hardware beyond the factory strut/shock assembly for installation.

Notes

• Swift Springs does not publish an installation PDF or a vehicle-specific install video for this kit; installation follows standard spring-compressor procedure onto the factory struts/shocks.

PART NUMBER

• 4X905R

VEHICLE APPLICATIONS