• Front spring rate: 5.5kg/mm (310lb/in), 10mm drop
• Rear spring rate: 5.7kg/mm (320lb/in), 10mm drop
• Progressive-rate coil design
• Developed and manufactured in Europe to exact tolerances

Real Spring Rates, Real Drop Numbers

Whiteline Springs are engineered to deliver improved vehicle performance while maintaining real safety and ride quality characteristics, rather than trading one for the other. This kit contains 5.5kg/mm (310lb/in) front-rated springs that provide a 10mm drop, while the 5.7kg/mm (320lb/in) rated rears deliver a matching 10mm drop to the rear of the vehicle. Lowering the vehicle's center of gravity this way not only improves cornering performance, the unique progressive-rate coil design also genuinely enhances overall appearance and stance. It's the kind of upgrade that quietly improves everything else in the suspension too.

European-Made to Exact Tolerances

Developed and manufactured in Europe from the highest quality materials, coatings, and to the finest tolerances, these springs guarantee exact fitment straight out of the box. Whiteline Springs are engineered for optimal balance with both OEM and aftermarket shocks, so they work whether you're keeping the factory dampers or upgrading them separately. For total grip activation, Whiteline recommends pairing these springs with a matching Whiteline Sway Bar and Essentials kit for genuinely unrivalled handling and optimal vehicle performance. That's real, functional engineering, not just a marketing claim.

Straight From Subispeed

A well-specified, exact-fitment lowering spring upgrade for 2008-2014 STI — pair with a matching Whiteline sway bar for the full handling benefit.

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