INTRAX designs most of its lowering kits with progressive rates, to satisfy the two features you've asked for most. First, the lowered look. Most other brands' springs are linear rate, as this is cost-effective but doesn't necessarily provide the visual effect you desire. By designing a progressive spring, Intrax achieves the lowered look while maintaining safety standards of spring preload at suspension droop. The second requirement is ride quality. Since most of you drive 90% of your mileage to and from work, you wanted to retain some ride quality enjoyed with OE springs. INTRAX progressive springs provide high performance looks and comfortable ride quality.

Drop your car 2.5"!!