So, was looking over the engine specs on the 201o CVO's with 117 CU M8. The Glide models are still air cooled and have a larger lift cam. Cam is a 432/445 lift. Anyone dug into these with a larger cam , de-catted exhaust and a tune? What were the results?
There have been several people who have done what your asking about with great results!! Check the M8 form and the Dyno section out.
Friend reported a 2020 CVO 117 with Fullsac headpipe & 2" cores in the stock mufflers, TTS175 cam, made 131.9 TQ and 119.9 HP
https://harleytechtalk.com/htt/index.php/topic,110348.msg1315765.html#msg1315765
Oops, sorry, that one has a Billet Cat exhaust, otherwise stock heads and throttle body.
Used both RS .468's and S&S .475's in the 117" engines now, with cylinder head work, and OE t/body's.
The .468 will have it up front, while the .475 spreads the power off farther into the rpm's.