Upgrade or replace your BC Racing coilover springs with high-quality, 70mm I.D. (inner diameter) linear springs, designed for precision performance and long-term durability. Made from SAE9254 high-tensile steel, these springs feature a zinc undercoating and outer powder coating to provide superior rust resistance and reliability. BC Racing 70mm linear springs are available in a variety of lengths ranging from 120mm to 260mm and spring rates from 3K to 20K, giving you the flexibility to fine-tune your suspension for optimal handling and ride comfort. For higher spring rates up to 40K, we recommend upgrading to Swift Springs. Whether you're looking to replace worn-out springs or customize your suspension setup, BC Racing replacement springs provide the strength, consistency, and performance needed for both street and track applications. Features 70mm inner diameter – industry-standard fitment SAE9254 steel construction – high tensile strength for longevity Zinc & powder coating – superior rust resistance Wide range of lengths & rates – from 120mm to 260mm & 3K to 20K Compatible with BC Racing Coilovers (of matching spring size) Specifications Brand: BC Racing Quantity 1 Spring Inner Diameter: 70mm Spring Type Linear Additional Notes Customize at your own discretion. Please ensure you are selecting the right specs when customizing your coilovers. We highly recommend ensuring your struts are properly valved to match your chosen spring rates. If you're increasing or decreasing spring rates by 4k or more, it's best to revalve your struts accordingly. Failing to properly match your springs and struts can lead to coilover damage, reduced performance, a noticeably harsher ride, and may void the warranty.
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