altima fans fit the rad. perfect the shrouding it self needs a lil triming to fit between the frame rails but they work really well. i just droped my mech. fan last week made the engine a lil more revv happy. two weeks ago went to the 1/8th mile track ran 10.5s all night long went last night ran 10.3s al night and one 10.2 and it was WARMER this week than two weeks ago so there you go. and ive had NO over heating issues and i live in alabama so...