K-Tuned

Spec-R Lowering Springs

$530.00

SKU: 4T914R

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The K-Tuned Spec-R Lowering Springs are engineered for the 2015 and newer Lexus RC F, offering a significant upgrade to both handling and aesthetics. The setup provides a more aggressive stance for the vehicle, achieved through a carefully calibrated drop without compromising daily comfort. With specific spring rates tuned for the RC F chassis, the front springs measure 9.0 kgf/mm, while the rear springs are rated at 16.0 kgf/mm. This tuning results in a lowered profile, with a front drop of -1.3 inches and a rear drop of -1.0 inch. These specifications are intended to deliver track-inspired suspension performance while maintaining the refined ride quality expected from a Lexus. These Swift Spec-R Springs are specifically tuned to be used with the stock shocks of the Lexus RC F. This ensures a cohesive suspension system that balances performance enhancements with reliable component integration.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandK-Tuned
Part Number4T914R
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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