I'm usually the guy that likes to do the before and after testing. After I got over 100 miles on the bike I never had any more issues with finding neutral or shifting. As for as HP I think it adds about 20 hp
Just kidding. But on the serious side , when I first got my hawk I was going to do a base line dyno run on a friends MC dyno after I put a few miles on it but he ended up closing shop and sold it. I wanted to see how much more power I could get out of it with each mod. I wanted to check oil temps before and after installing the cooler but forgot all about it when I did the install. You know how it is. you get a new mod and want to get it installed right away. So 2LZ we are going to leave that test up to you.
One thing I did notice is It didn't burn the crap out of me when my ankle touched the engine block like it did before. It's still hot as hell but didn't leave a blister.