Because of a supply problem with the bimmers four pot calipers i am going to have to use the ST for a trackday at oulton park. As i had a few days to get ready i started thinking what good cheap mods i can do just to make the car a little quicker and even more fun on track.

Well of course the most obvious and cheapest mod sprung to mind shed some weight (from the car that is LOL), Don't want to go mad as this is my good car so seats are the easiest thing to remove and replace. I have a spring balance so weighed the bits as i removed them,,

rear seat base = 7kg
large folding rear seat = 13kg
small folding rear seat = 6kg
front passenger seat = 19kg

so a very easy 45kg saved for about 15mins work. Can add spare wheel and jack to the list which should take it to over 50kg saved which will help a little, also means no 90kg passenger slowing me down. LOL

Already have mintex 1144 pads fitted and i find the brakes on the standard ST to be very very good tbh, so without going mad i wonder if i should go for a K&N filter, flexi pipe and maybe a 12.5 rear axle kit.

Or will these mods just be a waste of money.