okay, here is the dirty:
for someone to create an FWI and for it to be beneficial you need it to be 4" piping with a maximum bend of 22.5* and the biggest cone filter you can find. the problem with it actually being in the fender is that you have to put a big bend in it which i dont care for. i think so long as you get it close to the fender opening then youre golden.
if youre looking for the most power overall you should do well with some form of a short ram like i mentioned above. once you get past a 3.4 setup (if you have a GTP) its really best to just run an open cone (right off the throttle body).
