Engine radiator MISHIMOTO or Koyo

Radiators aren\u2019t supposed to leak. I have the same Koyo radiator in my NA Z, just put it in this past summer. I def do not have that leak.

I like my Mishimoto one. But I have an Auto, and the only one they had for the Baja didn't have the cooler built in, so I had to run an external trans cooler. But it all went easy, even with that. Electric fans and catch tank bolted right up no problem

Personally I’d be buying a koyo in full aluminum.

Exact thing happened to me last year. Replaced with a Mishimoto

I went with a Koyo radiator, which is considerably better built than the factory piece, cost less than $300 with new hoses, and took maybe 2 hours, start to finish. Of course, I replaced the coolant at the same time.

just tested my new koyo hyper V at the track and that thing kept it rock solid cold, 180-203f the entire day but it was like 68 degrees out lol.

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 think theyre decent.

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.