The AEM-29-0004 performance strut bar provides additional vehicle stability on various Subaru Impreza WRX and STI models. AEM strut bars are constructed from 1-1/2 inch steel tubing, providing great strength and low weight which gives you a true racing option and a more professional alternative to many hinged or weaker strut bars on the market. The AEM-29-0004 performance strut bar comes in a charcoal gray powder coat finish with the AEM logo giving you a clean high-performance look under the hood. This strut bar is easy to install using the existing factory mounting points. AEM performance strut bars provide additional vehicle stability from high strength 1-1/2 inch steel tubing. This strut bar comes in a charcoal gray powder coat finish with the AEM logo for a clean high-performance look under the hood.