Chassis Components› Chassis and Frame Components

V8 Roadsters

Tubular Rear Subframe

$1,439.99

SKU: NA-NB-REAR-SUBFRAME

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Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The V8 Roadsters Miata Tubular Rear Subframe is a robust chassis component designed for NA and NB Miata models. It is constructed from DOM tubing and features machined aluminum and fabricated components with a powder-coated silver vain gray finish. This subframe integrates suspension pickup points, exhaust hanger locations, and brake line mounting points for seamless adaptation with OEM components. It is available with various differential mounting options, including Cobra, Stock Differential, Mountless, 8.8 (Explorer rear cover), and Getrag.
Show original supplier description
The V8 Roadsters Tubular Rear Subframe is a significantly upgraded chassis component engineered for the NA and NB Miata chassis, representing over 7 years of development. Manufactured in-house using advanced tube processing equipment and precision fixtures, it utilizes a tab & slot function for accurate assembly. The design integrates all NB suspension pickup points, exhaust hanger locations, and brake line mounting points, ensuring compatibility with other OEM Miata parts. This subframe is constructed from DOM tubing and features machined aluminum and fabricated elements, finished in silver vain gray. It offers increased rigidity and greatly enhances rear chassis stiffening over the OEM subframe. The modular design supports multiple differential options: Cobra, Stock Differential, Mountless (no differential provisions), 8.8 (Explorer rear cover), and Getrag. A weight reduction of 10-15lbs is achieved over the OEM subframe when used with V8R differential swap kits. It is compatible with OEM control arms and aftermarket options, as well as NB subframe bracing. Please note that this component is designed as a race component for off-road use and will increase NVH (Noise, Vibration, and Harshness). It is also not compatible with all exhaust systems. Products may vary from the image shown.

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

BrandV8 Roadsters
Part NumberNA-NB-REAR-SUBFRAME
CategoryChassis 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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