TaylorMade Stealth UDI driving iron, Stealth DHY driving hybrid

TaylorMade has offered UDIs for several seasons (the most recent was last season’s P•790 UDI), with the letters standing for ultimate driving iron. The new Stealth UDI is offered in 18-, 20- and 23-degree options, lofts that are similar to the Stealth 4-, 5- and 6-irons. 

Visually, the Stealth UDI looks like a cross between the Stealth irons and the TaylorMade P•790. It has some offset and a moderately wide sole to go along with a reassuringly wide topline. While many accomplished golfers prefer a thin topline, driving irons – which tend to be more distance-oriented – usually have a thicker topline.

The body of the club is cast using 450 stainless steel, and it has a thin, L-shaped face that is forged using 4140 stainless steel, the same material used in the P•790 face. The hitting area is slightly thicker in the center and thinner near the perimeter, allowing the face to flex more effectively. A Speed Pocket slot in the sole helps the lower portion of the face flex more efficiently on thin shots.

The Stealth UDI is filled with Speed Foam 2.0 to absorb vibrations and improve the sound. (TaylorMade)

Inside the head, TaylorMade added Speed Foam 2.0, a lighter version of the original foam material added to the first P•790 irons. This updated material soaks up excessive vibrations to enhance feel, but because it is lighter, more of the overall head weight shifts to the perimeter to increase stability.

The Stealth UDI produces less spin and a lower ball flight than the Stealth DHY and has less offset, a thinner sole and a thinner topline than the standard Stealth long irons.