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Suspension and Components› Springs and Components

Swift

Spec-R Lowering Springs

Name: Spec-R Lowering Springs
Brand: Swift
SKU: 4T916R

$397.50

SKU: 4T916R

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$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The K-Tuned 4T916R is a set of Spec-R lowering springs designed for performance driving. These springs offer a balance between street refinement and track-ready handling.

Featuring spring rates of 8.0 kgf/mm in the front and 14.0 kgf/mm in the rear, these springs are engineered to enhance vehicle dynamics. They are crafted to maintain quality ride characteristics while improving handling and lowering the vehicle's ride height.

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Designed as a direct replacement for your vehicle's stock springs, they aim to elevate the driving experience without compromising daily usability. These Spec-R springs boast specific rates: 8.0 kgf/mm for the front and 14.0 kgf/mm for the rear. Swift Springs are renowned for their advanced materials and manufacturing processes, ensuring durability and consistent performance. These springs are specifically designed for the 2016-2020 Lexus GS F RWD models. Proper installation is recommended to ensure optimal performance and safety.

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

Brand	Swift
Part Number	4T916R
Category	Suspension 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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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