Engine radiator MISHIMOTO or Koyo

Koyo for top quality, mishimoto for normal quality. Both will do the job well

I just bought a Koyo, goes in tomorrow and appears to be great quality

Mishimoto oem replacement is cheap dependable and lifetime warranty.

Seems like a loose ground, my s13 did this when the grounds randomly came loose. That said my s13 cluster is so damn slow to react so I run an aftermarket gauge. I have a koyo rad which came with a slot for an aftermarket sensor.

Also i would hope it's not the case, however you mentioned this after an alternator change. I had a 96 civic with a turbo setup and I had an alternator with a failed voltage regulator, all of my aftermarket gauges and temp gauge was acting like this. I would check the volts from the alternator if this is the case, it also ballooned the hell out of my battery..

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.

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

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.

Mishimoto is crap.

thats the first one i got adter the oem failed. But a oem rad is just as good and the fitment is bad, it also broke after 2,5 year. I did get a replacement on there warranty with only paying shipping so thats good but i sild that radiator as i needed a better one.