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.
Reviews of MISHIMOTO engine radiator
300 votes
I got the mishi rad and racing thermo in mine for vegas. Love it, no issues thus far after 2 years.
I have Mishmoto ( dont recommend) on my 2016 wrx in Arizona at 110 days w the Ac on it runs at 190-197 on the streets. While on the freeway its at 215 avg while cruising at 80mph. Been on my car since 2017 I think. But this was before CSF and whatnot came around. Can’t wait to save up and switch.
Bought it for my coyote swapped F100 and there was a hole in it from the start. Rewelded the whole thing because wasn’t worth the return when I can just do it myself. Welds just looked like someone just started child labor and it was their first day on the job. Wouldn’t buy one again if I had too.
my Mishimoto leaked/falied apx 10-11 years after I bought it. and keep the receipt, or your lifetime warranty will not be valid
As for highway driving (when the high speed airflow takes over) I saw little to no difference with my OEM vs Mishimoto All-aluminum radiator. Hot day, w/ and w/o AC temps push 220F easily.
Later I came across a deal for a Mishimoto radiator and had that installed. I’ve had no issues with my Mishimoto, and I bought it before seeing most recommending the Koyo Radiator over Mishimoto.
In my particular situation I went with the Mishimoto radiator. Idk why it gets so much flak. Had no issues with install and it has been great. Now I use my 8 for autox so I needed the extra cooling. I can say that last weeks event it was 89 degrees out and even after a 2 hour drive and fielding for 4 mins to make my run; my ect was 200.
I would bite the bullet and buy a Mishimoto all aluminum radiator that is literally plug and play, its way better than stock and there's no plastic to crack.
I bought a mishi three weeks ago, it arrived a week later, leaking. Two weeks later, mishi gave me a new one for free. Guess what.. it’s leaking too, from the welds at the neck. I gave up and had my buddy seal it up good
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