Being only a fair and infrequent wrench on my 07 Road King I decided it was time for a oil cooler. After considerable research bought an UltraCool unit, and struggled a bit with the install. Called and was given excellent help and advice which made the job go very well. Finished and ran the bike hard to get the full effect on my modified 96 motor. Great results and when the fans kicked on the temp immediately dropped even in typical Sh#@@Y Wash DC beltway rush hour traffic. Highly recommend the products and company. Well worth the time and money.