hey guys are these hard to diy?? front control arm bushing and flex disc... after i took it to the dealer for inspII they recommended i get these fixed for400+ and 300+ i was wondering if these are easy to diy maybe ill try to do it myself heh, also is flushing the radiator hard?

i think the hardest ive done to my car is replace the exhaust.. so i was wondering how much harder are these... thanks in advance