I have an O5 and I have a micron slip on exhaust. I am going to buy a BMC air filter and thats all I am doing to the exhaust. Possible down the line I will change the sprockets. I am wondering if a PC3 will help me or will it be a waste of $250. I mostly ride street, no track days yet. I do ride hard, love the twisties. What do you think I should do? Pc3 or no PC3?