Originally Posted by Harvis

Hi my oem radiator is done so im was checking the prices and surprise oem its about 355 us , later i checked megan and mishimoto they round about 200-255 and are racing radiator .

Give me suggestions pls about wich one i must buy considering the price and the quality.

If the oem ists more expensive than racing radiator its better to choose between megan or mishiimoto .


Thxs for the help cam give me.

Originally Posted by The Profiteer

I find myself in a similar predicament.

I have to replace my coolant reservoir as the 'low coolant light; sensor issue has become more frequent and to much to bare and figured I'd do the whole cooling system at the same time.

The Ron Davis/Griffin & BHR seem just a little too much out of my price range and not the easiest to locate, I'm reluctant to go with the Koyo A/T model as it looks like a copy of the OEM with the same plastic issues, cooling issues and weight concerns.

I see that the Megan is advertising a 20 degree temp drop and the Mishimoto a 30% increase in cooling ability, both have the dual 40mm aluminum core construction and I think are quite a bit lighter than the stock.

I know the Mishimoto requires a universal transmission cooler to fit an A/T and the Megan is advertised as M/T only.

I wonder though, as both are advertised as direct bolt in options to OEM specs if the Mishimoto universal transmission cooler would fit the Megan radiator? Has anyone tried this?

I'm sure there are those reading this who must think just buy the parts from the same manufacturer and they will surely work. I agree, however the Megan seems to be coming in at about $100 less and with no notable performance difference, so while it might not seem like much, i'm planning BHR ignition coils next so every little helps.

Thought about the Fan Shroud, but I wonder is there any real difference between A/M and the OEM and if so how can this be proved?

Thoughts, comments...much appreciated.

Originally Posted by RIWWP

Mishimoto has never been, and presumably never will be direct bolt in. Do some search on it, and they have fitment problems in every make and model that they make radiators for. The RX-8 is no exception.

They advertise it as direct bolt in, but their definition of direct bolt in apparently includes "requires some cutting and fabrication to jam our parts together".


I can't answer anything about the shroud or Megan's radiator. I'd still recommend the Koyo from Mazmart, because it's proven to fit perfectly and the others haven't, and it is exceedingly well priced.

Originally Posted by Mishimoto

It is all about how a company handles themselves to correct it.