Hey guys,

I'm finishing up my 4th gen swap and was installing my radiator and my stock radiator fan is too fat! so im going to replace the stock unit with a spal 12 in slim fan. it will be a puller 12 volts.

what size do you guys with aftermarket slim fans use?

should i go ahead and get two or will one suffice?

get two as usually the more affordable fans are no where near pull the same CFM as the OE fans. I had a part number for Spal Fans that pull the same CFM and they were about $190 per

A lot of slim fans have their CFM rated in open air, not trying to push or pull air through a radiator. Get fans which have a static pressure measurement if possible, that'll tell you how well they can push air through an obstruction, just like PC case fans.

thanks guys!