Engine radiator OEM Volkswagen or KOYORAD

For your turbo Baja, [Koyorad](https://ebay.us/m/yadARd) is the creme de la creme.

I went with a Koyorad radiator from rock auto and then I also replaced the inlet and outlet hoses with OE. A new OE radiator cap, too. Subarus are fairly sensitive to cooling system parts, so for any mechanical bits (cap, water pump, thermostat, etc) I highly recommend spending on OE.

In the year I’ve had it, it’s cost me a new radiator that had split.

Just dealt with the same thing with my AP1. The plastic to metal seam fails eventually and causes the leak. I got the Koyorad OE replacement and it was around $100 and took an hour to install.

Koyorad if you want good OEM fitment and a fucking drain bung plus good cooling even for modified engines (we’ve put a bunch of the larger alloy ones into rx7’s)

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

Ive had my car enter limp mode multiple times on a high 80 track days. Coolant temp would spike to the 3/4 marks. When I upgraded the radiator to a koyorad I never had issues again.

I got the thicker Koyorad and managed to get it to fit with some redneck engineering, but it was a squeeze.

Be careful with the early MK8s. Mine is a 2022 and boy howdy she's got issues. Shift knob broke, steering wheel capacitor issues that disable travel assist repeatedly, backup camera failure and others say they have issues with the radiator failing to be fully seated on its clips and causing big problems.