While I am still holding out on Mario's exhaust request I did finally receive my order from China that contained the new slower gear motors for this today. After work I made the swap and was very pleased with the results! I went from 133rpm to 77rpm and I think it is the perfect speed!
https://www.youtube.com/watch?v=wOwj...tJ-DusnO8Onw7A
https://www.youtube.com/watch?v=SLvV...tJ-DusnO8Onw7A