Hello everyone! I recently got an akrapovic full exhaust system for my first bike (r3) and a k&n high flow air filter. My question is whats next because i have heard so much talk about tuning after and you need power commanders or ecu flashes, running rich, running lean. Basically if anyone knows how to tell if you are lean or rich and what would be best and cheapest tune for an r3 or if i dont need a tune i would appreciate it greatly. Thank you!