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, we achieve the lowered look while maintaining safety standards of spring preload at suspension droop. The second requirement is ride quality. Since most of you identified that you drove 90% of your mileage to and from work, you wanted to retain some ride quality enjoyed with OE springs. If you`re driving to work on a racetrack, "Sport" or "Race" springs from other brands may be for you. INTRAX progressive springs provide high performance looks and comfortable ride quality.
Super Sport kits provide aggressive drivers with substantially stiffer spring rates and some of the lowest fitments available for street cars, Super Sport springs lower vehicles 2.25"-2.5", providing race car looks with handling to match. All Super Sport kits are made with the same quality material and design standards used with our lowering sport spring kits. Super Sport lowering springs are designed to be used with aftermarket sport shock absorbers. Minor modifications or camber kits may be required.
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2000-2003 BMW M5 (V8 40V) E39
May fit other applications than what is listed, please check with the manufacturer or the specifics of your car or truck.
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Note: Related auto parts are shown for reference. Please check the fitment of each part you are interested.
"We aim for complete customer satisfaction. If you are not completely happy with your auto part purchase, we want to hear about it. Let us know if something is wrong and we will do what it takes to make it right."
- Team SFX
