Enhances Windows. Looking to give your Mustang a little extra attitude? Then look no further than the QAA Window Sill Trim Set. Custom-made to be a perfect fit for your vehicle, this innovative design enhances your windows, adding classic Mustang style. Durable Construction. Crafted from a high-quality, polished 26-gauge, 304 stainless-steel, this robust construction features a mirror-polished shine that’s resistant to rust and corrosion. Proudly made in the USA, this trim set comes with a protective plastic film that can be removed after installation. Installation. This easy install requires no cutting, drilling or modifications. The installation time is estimated at 15 minutes and pre-applied 3M automotive grade acrylic foam tape is included on the back of trim pieces. Warranty. Any defective manufacturing found in the materials or workmanship will be covered in full with a limited lifetime warranty. Application. The QAA Window Sill Trim Set is designed to accommodate all 1999-2004 Ford Mustang models.