I researched looking for an oil cooler for my 08 Ultra Classic, looked at the HD oil cooler and a few other after market. I like the stack plate design of the Ultracool instead of the fin/tube construction and the braided hoses with A/N fitting. Before the install, my oil temp was running 270 to 290 deg. The install was easy. This past weekend I was group riding the back roads of Pocono mts in Penna; the temp stayed between 220 & 230. Noticed the motor giving off a lot less heat, especially coming off the rear cylinder. I would definitely recommend this oil cooler. Mike B