Hi, I have a mk4 cortina 1.3L that is currently standard I am thinking about getting a bigger engine maybe a yb or v6 but first i want better brakes and suspention.....

for brakes I was thinking sierra cosworth how hard are they to fit???

for suspention i am not sure if i should mess around with cause i heard double wishbone are easy to ruin.... would i be better off fitting mcphearson or torsion bars from another car ????