February 26, 2013 2:32 PM PST
I've got a 2010 Ultra Limited with a 103, and I'd say yes it does "seem" to run a bit hotter than my 08 Street Glide that had a 96. I say seems only because I have no proof it does, it does seem hotter on my legs, but in Oklahoma with temps anywhere between 90+ to 120 any motorcycle runs hot in the summer. It did come with an oil cooler where the Street Glide (96) did not so if it does, it's got something to help there. Stock the 96 and 103 are gutless (your mileage may vary), so I've done a few things to "make it run better" I've opened up the intake (BIG Sucker), I've gotten rid of the cats, which opens up the exhaust, also put V&H power duals to help a bit more, changed the cam (255e) and did the SE Super/race tuner. After doing all that I believe she runs cooler and better, she's got a tad bit over 84,000 miles on her and she runs like a dream, and is as fast as she needs to be. The MoCo does testing on these engines, yes there are some that have had issues, but they all do, or will at some time down the road. Find something you want to ride, if you're worried about the 103 purchase the extended warranty, the MoCo will fix it. If you live in an area where you can open up the intake and exhaust and get rid of the cats have the dealer do it and the warranty will still be valid.
