What size rad 2.1 pinto

[Mexico*mad]

What core size rad would you recommend to keep a 2.1 pinto on 48's cool? I have no heater matrix so less water in the system and looking around the rads range form single 48mm core to 63mm twin core with the prices varying as much too. Cheers

[Vista]

I have a 2.2 pinto in my mk1 RS2 and it's fine on a standard mk1 big header rad, I did have a dual core element installed in it a few years ago though