{"product_id":"toyota-gr-supra-ard-prepreg-race-diffuser-2020","title":"Toyota GR Supra ARD Prepreg Race Diffuser 2020+","description":"\u003ch2\u003e\u003cstrong\u003eAero over aesthetic. Function over form. Purpose over compromise.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat is ARD?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eARD (ADRO Racing Division)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis ADRO's motorsport engineering program, built for drivers who demand more from their car on track.\u003cspan\u003e \u003c\/span\u003eEvery ARD component is developed through CFD simulation and track tested before anything reaches a customer. Scott, ADRO's Head of Aerodynamics, brings an F1 development background to every ARD project. The GR Supra ARD Aero Package is the one of the first full systems to come out of that program.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eThe Rear Diffuser\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eA diffuser works by taking the high-velocity, low-pressure air traveling under the car and gradually expanding it back to ambient pressure before it exits at the rear. Done correctly, this expansion accelerates the flow ahead of it, increasing suction across the entire underbody. Done incorrectly, or with gaps and interruptions in the undertray that allow turbulent air to mix in, the pressure recovery breaks down and the diffuser produces a fraction of what it should.\u003c\/p\u003e\n\u003cp\u003eThe ARD rear diffuser is developed as the endpoint of a complete underbody system, not a standalone component bolted to the rear bumper.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eHow It Works\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe diffuser undertray seals the gaps that cause turbulent recirculation under the car. On a stock Supra, those gaps allow high-pressure air to bleed into the underbody from the sides and center, disrupting the low-pressure environment the diffuser depends on. Blocking them keeps underbody velocity high across the full floor, which means the diffuser strakes have clean, fast-moving air to work with rather than recovering from turbulence upstream.\u003c\/p\u003e\n\u003cp\u003eThe strakes inside the diffuser generate vortices that roll along the diffuser surface, energizing the boundary layer and preventing flow separation as the channel expands. This is what allows the diffuser to extract more work from the airflow without stalling. Those vortices are stronger because of what happens upstream: the ARD undervanes generate large-scale vortices that feed conditioned, high-velocity flow rearward through the floor, arriving at the diffuser inlet with enough energy to drive the expansion process effectively.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAs part of the complete ARD Aero Package (in ADRO bumper configuration)\u003c\/strong\u003e, the system generates 2148N (483 lbs) of downforce at 180 km\/h, a 1618% increase over the GR Supra's stock 125N, with a gain of +2023N (455 lbs) and a 45\/55 front-to-rear balance.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eARD components are produced in prepreg carbon fiber. Prepreg uses resin pre-impregnated into the fiber under controlled conditions, meaning resin distribution is precise and consistent throughout the part. The result is a lighter, stiffer component with no soft spots or resin-rich areas that can delaminate under load.\u003c\/p\u003e\n\u003cp\u003eFor a rear diffuser, panel stiffness affects more than durability. A diffuser channel that flexes under load changes its expansion geometry, which alters the pressure gradient the strakes are working against. Prepreg holds the designed geometry at speed and under heat, so the diffuser performs consistently across a full session rather than degrading as conditions change.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e2020-2026 Toyota GR Supra\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e2026 Toyota GR Supra Final Edition\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cspan\u003eCompatible with our \u003c\/span\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.zerooffset.com.au\/products\/toyota-gr-supra-a90-rear-diffuser\" target=\"_blank\" rel=\"noopener\"\u003eGR Supra A90 Carbon Fibre Rear Diffuser\u003c\/a\u003e\u003ca rel=\"noopener\" href=\"https:\/\/adro.com\/products\/gr-supra-carbon-fiber-rear-diffuser\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIf you're unsure whether this will fit your vehicle, contact our team of experts via email at \u003c\/span\u003e\u003cspan\u003esupport@zerooffset.com.au\u003c\/span\u003e\u003cspan\u003e and send through a few photos of the car for us to verify fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cb\u003e\u003cspan style=\"color: red;\"\u003eCheck Note\u003c\/span\u003e\u003c\/b\u003e   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eUpon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and\/or installation. Returns\/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable\/new condition.\u003c\/span\u003e\u003c\/p\u003e","brand":"ADRO Inc","offers":[{"title":"Default Title","offer_id":49325318439139,"sku":"R18A20-1301","price":5100.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0037\/3407\/7540\/files\/diffuser_1.webp?v=1782702100","url":"https:\/\/www.zerooffset.com.au\/products\/toyota-gr-supra-ard-prepreg-race-diffuser-2020","provider":"Zero Offset","version":"1.0","type":"link"}