i want to replace both of these with brighter lights, will these do the job and will they fit?

i have done plenty of research im just looking for some opinions on the lights and just to make sure they will 100% fit...

also, i know i read something about dual filament, but these are single filaments, whats the difference and can these be used?

http://store.ijdmtoy.com/7440-Single...ee-7440-2n.htm



http://store.ijdmtoy.com/H4-9003-LED..._h4_sku_43.htm



Thanks in advance, JUST TRYING TO MOD!!!

lol p.s. 2004 g35x sedan