I have been searching and searching and all I find is people talking about whether fluidyne is better than koyo. I am pretty set on a koyo. My question is whats the difference between the different koyo's you find on ebay? One says "aluminum radiator with 30% increased cooling" and the other says the same thing but its the "N-flow" radiator and is more expensive? Just curous of what the N-flow is and if its worth the extra $$?? Thanks!

 

the N-flow is a triple pass rad... how much better it is im not sure, But it seems that most people have luck with the single pass versions of the koyo, fluidyne and mazda comp. The koyo is thicker than the other two, so it should cool as well if not better provided there is airflow.

The single pass version is what i ordered for a car thats going to see a fair bit of roadcourse time, so im banking on it doing the job.

 

I've got a Koyo radiator on mine and have had no problems what-so-ever...can't tell you what any differences might be though.

 

the n flow is the newest model that they have out... not sure whats exactly different on it but it flows better. as for the sigle pass version i have it works great not really expensive i think it was worth it! i also heard that each koyo is a lil different from the other... meaning they all arent the same size which is weird. hopefully someone will clarify my post and add some more info... just dont go with a huge custom radiatior there is a point where its too big and will decrease flow and increase coolant temps.

 

I have a koyo and a fluyidine and I would go with fluyidine. But they are both high quality large aluminum rads. Either one will be a great up grade. Just buy a single pass they are cheaper and work fine.