Engine radiator MISHIMOTO or KOYORAD

I bought the mishimoto rad and it works well, the main benefit to the mishimoto is that they have a no questions asked lifetime guarantee. I had to replace it after a year due to a leak and mishimoto replaced it completely free with very good customer service. So the rads might not be as good as CSF but my dealings with the company have been very positive.

im steady at 75°C (167°F) with stock Ka, koyorad radiator, fanshroud and oe/oestyled clutch fan. and iirc, a stock nissan thermostat. hottest ive seen was like 89°C (192°F) and that was sitting in traffic on a hot summer day. idk how im running so cold lol.

I went front mount on a DD that gets occasional track use. Huge benefit and reduction in heat soak. Needed to upgrade my radiator to a mishimoto 3 core to help keep temps down during track days. Overall happy with the upgrade, but not required until you start pushing big power.

Front tie bar, sometimes called a traction bar. Sharpens up the steering response, reduces torque steer significantly and in my case, reduced NVH

I went with the Koyorad on mine. Everything fit perfectly, no modifications needed, which hasn't always been the case for me

I’ve also personally had good luck with mishimoto.

For the same price, I would get the mishimoto, but my Amazon OEM style radiator was $75 and my only complaint is the unused transmission cooler bungs which aren’t needed on a manual.

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.

I have a mishimoto one and the Fitment is god awful would have gone with csf or koyorad if I did it again

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.