[spdbrake]

You can use any BMW E36 (manual trans) radiator for a bolt-in.

The are several to choose from.
Mishimoto
https://www.mishimoto.com/bmw-e36-al...tor-92-99.html ($237 amazon)
Mishimoto X-Line
https://www.mishimoto.com/bmw-e30-e3...tor-92-99.html ($466 amazon)
Fluidyne
https://www.turnermotorsport.com/p-1...6-323325328m3/
C&R
https://www.crracing.com/product/bmw...88-99-radiator
Iconicparts
https://www.iconicparts.com/products...iator-and-fans

Fans
Mishimoto
https://www.mishimoto.com/race-line-...ow-fan-16.html
https://www.mishimoto.com/bmw-e36-pe....html#features