[NigelStap]

You need replacement calipers, carriers, lines, discs and pads for the R56 Cooper S conversion.

I bought the calipers, carriers and lines new as a kit from Mod-A-Mini for £215. Head over to their website for a look, for information if nothing else.

R53 to R56 Brake Conversion | Mod A Mini

The R56 Brake conversion is a great and affordable way to get a lot more stopping power without braking the bank. We will supply everything required to perform the conversion yourself, or get it done by a local professional. We have many different options available so please message us if you...

www.modamini.co.uk

You then need to source new discs and pads which I did for a further £140 including discs and pads for the rear as well.

 

[NigelStap]

I can get drilled and vented discs for between £50 to £100 for brembo and £70 for yellows. I am assuming that the reason for the poor high speed braking is because the kinetic energy generated has no where to dissipate so you have to overcome this by either using more force ie-bigger piston force or allowing the energy to pass through the discs ie- drilled discs.

No. The main problem is the standard R53 discs and caliper pistons are too small. Brakes are all about leverage (disc size) and force (piston size). No amount of grooves or holes will make up for lack of either.

 

[NigelStap]

Probably best to go with the r56 ones then, so I gather I need calipers,discs, pads, carriers, brake lines

Take a look on the link to Mod A Mini that I posted earlier in the thread. All you will need extra is the front discs and pads. I chose to buy new discs and pads for the rear.

 

[NigelStap]

You can do that but would be recommended to refurb the calipers. Your money, your choice.

 

[NigelStap]

Price reduction at Mod A Mini: Now £200.00 for the R56 calipers, carriers and brake lines. Chuck in discs and pads for about £100.00 and you will have a good improvement over the standard set up for a good price.

Keep your old calipers, carriers and lines to refit if you sell so you can sell on the R56 kit for someone else to use as an upgrade.