I couldn’t believe the almost immediate performance difference in my 2005 Ultra Classic. The 96 Cid motor was producing more heat than the original 88 Cid motor, but the Ultracool cooler and high flow oil filter from Ultracool did as JJ, said lowered the temp 60 degrees. Very good product, JJ is very patient to make sure your 100% satisfied. They are very dedicated to customer service,support and technical support. Extremely glad I went with Ultracool and will for any bike in the future.