Sale

RS-R

Best-i Coilovers Front and Rear Kit

$2,399.00 $2,199.00 Save $200.00

SKU: XBIT175MA

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

Description

The RS-R Best*I coilovers are a hand-assembled, monotube damper system engineered to enhance the ride quality, performance, and comfort of your Lexus GS350 F-Sport RWD (2016-2020) or GS450H RWD (2013-2015). Each unit is meticulously assembled by hand, incorporating components like laser-cut upper mounts and vehicle-specific valving to ensure a high level of quality and detail. These coilovers feature 24-way adjustable damping, allowing you to fine-tune the shock's compression and rebound settings to suit various driving conditions and personal preferences. The system includes urethane bushings to minimize vibrations and noise during everyday driving and silent roller bearings on MacPherson type suspensions to prevent spring twist noise. Front spring rates are set at 9.00kg/mm, and rear spring rates are 8.30kg/mm. Preset approximate height reductions range from -1.4in to -1.6in for the GS350 F-Sport and -1.0in to -1.2in for the GS450H. Maximum adjustment ranges offer significant flexibility, with the GS350 F-Sport front adjustable from +0.8in to -4.0in and the GS450H front adjustable from +1.0in to -4.6in.

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

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandRS-R
Part NumberXBIT175MA
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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