




Product Details
About this part
Swift Spec-R Springs deliver track-focused performance engineered for the serious enthusiast. Dropping your E90 M3 sedan or E92 M3 coupe 1.0" front and 0.7" rear, these race-tuned springs feature aggressive 5.0 kg front and 12.0 kg rear rates optimized for factory dampers. Tested extensively on circuit, they maximize shock valving potential while remaining street-capable for daily duty. The complete four-spring set balances precision handling with compliance, making them ideal for drivers tackling multiple HPDE and SCCA events annually without sacrificing everyday usability.
- The most consistent spring rate throughout the stroke
- The largest amount of stroke
- The highest durability against loss of spring height
- The lightest in weight

Fitment
Not sure it fits? Contact us with your car's year, model and VIN and we'll help you confirm before you order.
If a part doesn't fit as expected, contact us and we'll work with you to resolve it.
Majority of products have a fitment section in the product description or within the title.
Returns
- Unused, uninstalled parts can be returned or exchanged within 30 days of the order date.
- To start a return: Contact us first, don't use Return to Sender.
- Returns can have up to a 20% restocking fee.
- Built-to-order and special-order items can't be returned or cancelled once production begins.
Shipping
- Orders are processed 7 days a week to ensure your product ships as quickly as possible.
- Inspect parts within 10 days of delivery, and reach out regarding any damage or missing pieces.
See our Tariff Policy
Warranty
- All parts retain the manufacturer's warranty.
- Warranty claims are subject to the manufacturer's approval.