Engine radiator MISHIMOTO or KOYORAD

On my Miata with the factory flawed OEM coolant routing, I run a Koyorad 36mm aluminum radiator with OEM fans and it keeps temps a bit cooler than stock.

I changed out the intake (noise maker but I love it) then everything that connects so the turbo inlet and bpv, charge pipe and a bigger tmic. A engine that can breath will be healthy.

This specific spot fails on almost every subaru radiator i have worked on.

If you are lucky KoyoRad still has their sale going, I just got an aluminum radiator from my 97 legacy for $180

If u get a mishimoto it won't break again

The radiator you could go OEM or NVA, but Koyorad is proven solid also.

For your turbo Baja, [Koyorad](https://ebay.us/m/yadARd) is the creme de la creme.

I went with a Koyorad, but for how much I’ve spent, I should have gone with a crossflow (either Supermiata or Flyin Miata). I also did a coolant reroute, which made me really regret not getting a crossflow

I ran one for 6 years half of which being turbo. The mounts are known to fail so you want to make your own or keep an eye on them. Both sides failed on mine but Mishimoto’s customer service is top tier and they sent me a brand new unit (whole radiator NIB even though only mounts failed) no questions asked. The drain plug is also known to snap if you over tighten it. Again, they sent me a brand new unit when that happened.

I went through 4 mishitis in 2.5 years DO NOT each replacement cost $45 for “shipping.” I lost money and time dealing with recycled beer can BS.

I have one in my turbo VVT build. It’s big but seems inefficient, to the point that I suspect a properly designed crossflow radiator would shed much more heat by letting the coolant spend a proper amount of time in the radiator as opposed to this giant heat-sink top down tank. It’s on my list of things to replace.