Koyo is definitely one of the best available as a stock replacement. They make 2. The n flow is a little harder to fit but is “better”.
Koyo rad is top tier, as I’ve used them on all my drift builds.
I bought a Koyorad radiator for my 2003 Toyota Sequoia and worked out perfect!
I refused to install anything but a koyorad
My all aluminum Koyorad radiator is a far superior unit than the factory original.
I run the Koyorad 38mm radiator on my NB, with just regular Prestone green concentrate and distilled water 50/50, and OEM Mazda cap and thermostat. Coolant temps stay in the 190's at all times. It very rarely gets above 200 except on the hottest summer days, usually when sitting in traffic.
Held out for the koyorad and it's the same size as stock and went in with no troubles.
I have a koyo radiator in my na6 with stock fan on it and it has no clearance issues. Probably wasn’t necessary for me currently but I’m going turbo after I spend more time driving it na so figured why buy twice and just went for the koyo.
My 2012 Sti with a Koyo aluminum radiator makes plenty of heat even down below 0°F
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.
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