Using this Perrin front strut bar is easy. First, make sure your vehicle is parked on a flat surface and the engine is off. It should take about 30 minutes to install. If you have a 2005 - 2009 Legacy GT, remember to trim the plastic engine cover before installation. This strut bar is designed to work well with both OEM and Perrin top - mount intercoolers. For maintenance, regularly check the strut bar for any signs of wear or damage. Keep it clean to maintain its finish. If you notice any issues, it's best to get it checked by a professional mechanic.