Whats better a koyo or mishimoto ? Also partsgeek.com has koyo for under $200.. Has anyone ever bought from them ? Casue i see in my area they running for like mid $300.

 

I can't speak from personal experience but the general consensus from all the threads I've read is that the stock radiator is better than either of those. If you want to upgrade your radiator get a Griffin unit from BHR or a Ron Davis one from Mazmart.

 

So i ended up getting a mishimoto.. At this performance shop around my way called japtrix.. See how it goes once i really take it for a ride.. But my radiator symbol still keeps on popping up.. Wondr if my sensor is dirty ? Not over heating or anything.. Also have my ( t.p.s ) flashing no air leaks on tires just got all new tires on saturday..

 

Sensor get's bent. Cause Mazda let oem run too hot and a materials defect. Want a recall on that? too bad lol.. just stare at the Crown Royal time to buy a bottle icon...

 

im just gonna do like everyone else and unplug it... The bottle is fine. No leaks anywhere... But i sure could have a drink of crown royal...

 

I haven't had any issues with my Koyo. I have the fans adjust to kick in at 188 and 190 with full speed at 195 and it never goes over 200.

 

So you would say the koyo is a good buy? OEM quality performance, ALL aluminum, worth the buy for someone who doesn't go to the tracks and just drives fast in hot temps?

 

It depends on your goals. If your OEM radiator is still good, just keep it. The standard Koyo has the same performance characteristics, but may actually perform to a lower standard, because it doesn't have the foam attachments. (You have to make them yourself.)

If yours is failing or has failed, and you want to ditch the plastic bits to make sure it never happens again, the Koyo makes some sense, although an OEM style radiator only costs around $90 and should last another 10 years.

For my money, if I were replacing it anyway, I would buy a radiator with a thicker core for better cooling. I have a Koyo HH Series 48mm and like it. It has dropped my average track temp by about 10 degrees, and gives me faster recovery times.

 

The plastic on my original cracked so I'm just looking for a replacement. But I went with the OEM replacement Koyo which is made out of plastic as well. I also bought the re-medy thermostat. But I don't do any track driving. I just like to drive fast and live in the high temps of Louisiana.