Engine radiator Koyo or OEM Volkswagen

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.

I went to the same thing this past summer(vegas) until I changed to koyo rad.

I used a like new radiator I had from my 16v post going aluminum rad and fans on that car. so new fan, cleaned up the wiring and put a better looking relay in and tested it.

the Koyo certainly looks much better. You won't notice any difference in cooling between the two.

I'd go with Koyo for price and ease of install. My reservoir hose nipple broke on my OEM radiator (OEM has plastic tanks) so I went with all aluminum for durability. My RX-8 also only drives on race tracks, so the extra cooling is nice.

The radiator on my 2016 is leaking, although leak isn't really the right word. Maybe porous. The hole is so small, it takes months to show a change in the coolant reservoir. On some days, given proper conditions, a small wisp of steam is visible coming from the radiator area. I added a UV dye to the cooling system, and it is visible then.

The problem I'm running in to is that the upper hose connection is positioned differently on the Koyo N-Flow/dual pass(RH020539N) and it's really close to the Q45 throttle body and attached TPS. I've already cut off the unused socket on the TPS which gives me more room but still not a ton to work with.