{"product_id":"fit-subframe-system-chassis-stiffening-kit","title":"FIT Subframe System Chassis Stiffening Kit","description":"The Stifflers FIT Subframe System is a comprehensive chassis reinforcement solution engineered for 1979-1993 Mustangs. This modular system integrates three key components—subframe connectors, stiffening rails, and a web brace—to significantly enhance the chassis's stiffness and overall strength. By reducing chassis flex, the FIT System enables more efficient power transfer to the ground, facilitates straighter launches, and improves handling precision. It also contributes to a reduction in interior rattles and can extend the vehicle's lifespan.\n\nThe innovative Slide-2-Size mounting system simplifies the installation of the web brace, making the process more manageable. To further streamline installation, the weld locations are intentionally left free of powder coating, saving valuable prep time. Additionally, it increases side impact safety.\n\nInstallation of the Stifflers FIT Subframe System requires welding and is recommended for experienced installers. Instructions are available for download to guide the process. A specific exception applies to 1987-1993 convertible models, where the stiffening rail component is not required and should be omitted from the installation. The system is otherwise designed to fit 1979-1993 Mustangs.","brand":"Stifflers","offers":[{"title":"Default Title","offer_id":52689402265912,"sku":"FIT-M02","price":559.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687694134.webp?v=1784906270","url":"https:\/\/store.motormia.co\/products\/fit-subframe-system-chassis-stiffening-kit","provider":"MOTORMIA","version":"1.0","type":"link"}