I had to replace my stock radiator after 10 years due to a leak. Got this installed with zero issues at my dealership, temps are lower than stock and the quality is superb. I paired this with IAG upper/lower radiator hoses and it all just dropped in no fuss.
100% recommend if you live in hot climates or a better than stock OEM drop in upgrade.
FYI the Subimods vehicle match tool is incorrect on the fitment for this part; it DOES support a non-STI WRX model. I have a 2015 WRX Premium (Non-STI) and it is 100% supported. Best to check the model on the Koyorad site directly for proper verification.
https://koyoradracing.com/product/vh091662/