Engine radiator MISHIMOTO or OEM BMW

Later I came across a deal for a Mishimoto radiator and had that installed. I’ve had no issues with my Mishimoto, and I bought it before seeing most recommending the Koyo Radiator over Mishimoto.

In my particular situation I went with the Mishimoto radiator. Idk why it gets so much flak. Had no issues with install and it has been great. Now I use my 8 for autox so I needed the extra cooling. I can say that last weeks event it was 89 degrees out and even after a 2 hour drive and fielding for 4 mins to make my run; my ect was 200.

I would bite the bullet and buy a Mishimoto all aluminum radiator that is literally plug and play, its way better than stock and there's no plastic to crack.

I have Mishimoto radiators in both my Miata and E36 and I haven’t had a single issue with either one.

Have had no issues w my Mishimoto radiator and it's been on my car for 2 years.

I put a Mishimoto rad in the R53 on the same terms as you @whalemingo - and only learned of Mishi's QC decline after I put it in the car. So far, it's been just fine.

Mishimoto, despite it being overpriced, does not have plastic parts.

During Covid a lot of brand new genuine BMW parts had some issues so I had to change my radiator twice, was covered by BMW dealer after loads of back and forth. (There’s two part numbers for B48 engine main radiators and the dealer said the part number used was not meant for the car but the other radiator clearly wouldn’t fit)

I despise those mishi radiators they take up too much space. Makes it hard to do anything on the front of the engine without ripping it out.

I've replaced a radiator on a BMW 2018 3 Series with as little as 22k miles. This particular vehicle was leaking from the side tank of the rad, where the plastic is crimped to the aluminum. Nothing abnormal could be seen, just the crimp failed.