Use barrel clips so you don't have to remove the fenders , You get the size that fits the emblem studs . the clips are installed into the hole in the fender from the outside and then the emblem studs are pushed into the clips ,It's easy , they are cheap and it works .
https://www.summitracing.com/parts/s...SABEgKlVPD_BwE
they are on ebay with an assorted pack cheap, napa, most auto part stores