thickness isn't the only way to improve the cooling.
My new AH fab one is gonna be using a better designed 50mm core,
My old AH core was 50mm, and keeped car about 3 deegrees cooler on a trackday in mid summer heat, than the std one did on a trackday on last Sunday.
AH rad, 88oC after 15mins session in 26 oC ambients
Std Escos rad, 91oC after 15mins session in 6 oC ambients
on same car, same engine, same boost, nothing changed in the coolin system.