FIT System Modular Chassis Stiffening Kit

The Stifflers FIT System is a comprehensive modular approach to achieving ultimate chassis stiffness and strength for your 1994-2004 Mustang. Designed through extensive research and testing, this system integrates subframe connectors, web braces, and jacking rails to create a triangulated web of support. It efficiently transfers more power to the ground by preventing chassis flex, leading to straighter launches and reducing or eliminating interior rattles. This system also enhances side impact safety. Installation is made easier with features like weld locations that are free of powder coat, saving significant time. The "Slide-2-Size" mounting system for the Web Brace ensures a custom fit with effortless installation. The non-intrusive design means no cutting of floors, interior removal, or relocation of lines is necessary, and ground clearance remains unchanged. This FIT System includes Stifflers' Subframe Connectors (SFC-M01), Stiffening Rails (SR-M01), and Web Brace (WEB-M01). It is specifically designed to fit 1999-2004 Ford Mustangs, including GT, Bullitt, and Cobra models. Note that this system does not work with side-exit exhaust systems.