A and R Baffle kit?

Hello all. Saw this baffle kit on the mt10 forum and was wondering what you guys think of it. I really like the idea of it because I can't justify the price most slip on's are. Plus the stock can looks pretty good. The baffle kit would most likely be temporary until I set enough money aside for a tune and 3/4 system. Unless it sounds the way I am hoping it will. Here is a link to it: aandrmotorsport.com/store/race-baffle-kits/yamaha/2015-yamaha-r1-race-baffle-kit/