I put a larger radiator in my Duster. All I needed to do was drill new mounting holes in the radiator support cowl. The radiator I used is a 3 core and the hoses line up perfectly from the old narrow radiator. I did have to kind of bend one of the transmission cooling lines over a little to fit but it was not an issue at all. The car NEVER Overheats or runs HOT even on a 100 degree day!!!!! The radiator I am using is 28 3/4" wide from support brackets and 26" wide at the tank edges. I do not even need a fan shroud with this radiator. I am using a 6 blade lightweight (plastic) fan that I ordered from Summit. I also have a radiator cap with a built in temperature guage in the cap. Temp at cap never goes over 190 degrees.