just got my new northern dual fan shroud combo in and tried it out, all i can say yeehawwwwwwwwwwwwwwwwwwwwwww! it worked great i have the northern radiator and i tried my old electric fan with no shroud, guess what, if you turned it on when car hit 180 it would do ok until you hit a hill,heavy traffic, or under load, then 200 and above here we come. then i ordered the fan shroud kit that matched my radiator, wired it in and mounted, it fit great, plenty of room between water pump pulley and fans, started my car and let the thermastat open and turned the fan on keep it 180ish easy, so then i thought i'll see if its going to work at higher temps so i let the temp get up to about 205 and flipped the switch, a minute later it was going down and on down, it went down past 180, i figured good enough for me it, the radiator and thermastat were working wonderful together. now this is just my first test with it but my first results for me are great, if it works like this in traffic and summer heat i'll be happy. had tried other fan and radiator set ups and couldn't get one to perform the way i wanted. either way i would give the northern fans a 2 thumbs up:thumrigh: