Fender flares are always truck to wrap whether it's with PVC or PPF. The reason is the big compound curves coupled with the very hungry "mouths" by the wheel. In this case with using a precut piece of PPF, this can easily lead to misaligned edges and tension on the underside. To avoid this and get a TWI Pro install, Timm combines extra solid prep with a good sequence of techniques and flow to ensure alignment on the top. For the bottom, he forms the film into the mouth without tension then shows how to trim the edges for solid coverage and long term hold.