will rpf1 18 x 10.5 +15 fit on my evo 8 ?? i know i will need fender work..but will i need to have some spacers for it to be installed and will it clear the brembos and everything else

 

no spacers needed. they will bolt up and clear no problem only thing to worry about is your fenders depending on how low you go and what size tire you run.

 

looks like you might have to roll your fenders

 

Those wheels are quite wide and also quite aggressive with the offset. Caliper clearance should be fine however fitting those under the stock fenders especially in the rear is going to be quite tricky. Any reason you want that size rim? Also what size tire did you have in mind?