I've bought a Super 2 core rad from Minispares - part no. C-ARA4442...
Althought the description on the website state that this comes with a brass drainplug, this seems to no longer be the case as the two last ones I've seen looks to share the same bottom tank as C-ARA4443 - but without intread of the fan-switch they got what looks like a plastic (or so it looks to me) plug in the bottom RH/front corner as sen on this alloy version:
Now the big question... will these plastic plugs cope with high performance use? (i.e tarmac-racing) or should I replace it... and if so - with what?
I have used this radiator in several endurance races without any issues.
I took expansion tank off after last season...still no issues.
steady 80 degr with blanking sleeve.