Vehicle Model
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Model Year
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Lowering in Inches
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Part Number
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Front
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Rear
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|||
M Coupe, M Roadster
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98-02
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n/a
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n/a
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RSS1512-1
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First, their springs are precision wound with only the highest quality spring steel. They then apply on-time tempering to realign the molecular structure of the steel for long term elasticity. The springs are then shot peened inside and out, a process that increases the service life of the spring more than 200%. Next, every spring is pre-set using the exclusive "Super Blok" system. This system cycles the spring coils so the springs never set or sag. Never! Finally, their special powder coating process results in springs with a flexible and durable finish.