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Chassis Components› Chassis and Frame Components

Spoon

Rear Subframe Rigid Collar Kit

Name: Rear Subframe Rigid Collar Kit
Brand: Spoon
SKU: 50300-SE3-000

$267.50

SKU: 50300-SE3-000

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$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Spoon Rigid Collar Kit is a rear subframe reinforcement designed for the Mazda RX-8 SE3P. Constructed from tempered aluminum, this kit includes 12 rigid collars. Installation is estimated to take one hour.

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The Spoon Rigid Collar Kit is engineered to enhance the chassis rigidity of the Mazda RX-8 SE3P. By filling the gap around the subframe mounting bolts, these collars reduce unwanted flex and improve overall handling characteristics. The kit includes 12 rigid collars made from durable tempered aluminum, designed for the rear application. Installation is straightforward and estimated to take approximately one hour. The precise fitment for the Mazda RX-8 SE3P is confirmed for both the 02/2003-03/2008 and 03/2008-04/2013 models, both featuring the 13B-MSP engine. While compatibility is listed for JDM cars, it is recommended to conduct your own research to ensure fitment for your specific vehicle. Please note that after-sale support does not include installation assistance.

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	Spoon
Part Number	50300-SE3-000
Category	Chassis Components

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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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