Quote Originally Posted by Stigg ma View Post
blocking, just like what we have with the vios, 1 & 2 nz-fe have pipes from the water pump going to the heater core in the cabin... but since the vehicle in the philippines are not fitted with a cabin heater core, said pipes are blocked by a rubber plug...

if you maintain a good coolant system it shouldn't be a problem...
Presently, I already tried both. Seems they have both the same good effect, or no effect at all in the cooling system. Thanks for all your comments!