Engine radiator Koyo or Nissens

Put a koyo rad in it and it’s been good to go.

If you go aluminum Koyo is the way to go.

I went with Koyo. CARid was the best price at the time. Been 7 years and no issues.

Wedged the GTI's radiator in. I was pretty worried about the Nissen OE equivalent I bought on FCP euro being enough for the VR6.

Radiators aren\u2019t supposed to leak. I have the same Koyo radiator in my NA Z, just put it in this past summer. I def do not have that leak.

Personally I’d be buying a koyo in full aluminum.

I went with a Koyo radiator, which is considerably better built than the factory piece, cost less than $300 with new hoses, and took maybe 2 hours, start to finish. Of course, I replaced the coolant at the same time.

just tested my new koyo hyper V at the track and that thing kept it rock solid cold, 180-203f the entire day but it was like 68 degrees out lol.

Nissens is ok

The ~2014 Nissens, with the 15 round tube design just doesn't cut it. From what I can tell the car would've come with the 30 flat tube design. The Nissens just doesn't have enough surface area. On a hot day, with the AC going and highway speeds it just couldn't keep up.