Engine radiator MISHIMOTO or Koyo

You can get a koyo radiator for like $160 bucks. I have an Avalon that looks identical under the hood. If it takes you more than 1 hours start to finish something went wrong.

When this happened to me, I had to just bite the bullet and get the mishimoto radiator. Now my Z runs slightly on the cooler side and it’s amazing.

I went to the same thing this past summer(vegas) until I changed to koyo rad.

Mishimoto radiator, all under trays intact, vented carbon hood, dual rotary performance oil cooler thermostats, and mazdaspeed front bumper. She stayed a steady 205.

I usually Autox and track my rx8. My last event it was 90 outside and after fueling and a run my temp was only 205. I do have an aluminum misimoto radiator

Replaced it with that exact same Mishimoto rad and have had zero issues with the fitment or durability for 10+ years and 60k miles later. I believe I saved ~$600 or so by not pursuing OEM replacement.

I got the mishi rad and racing thermo in mine for vegas. Love it, no issues thus far after 2 years.

Mishimoto is okay but it's fucking massive and requires more disassembly of the front end of the car to stuff it in there.

I despise those mishi radiators they take up too much space. Makes it hard to do anything on the front of the engine without ripping it out.

Recently got rid of the mishimoto radiator and went back to the updated larger radiator