All of this I agree with. And I run the Leo Vince on my 1000rr street bike. I have the Akro on my GSXR600 track bike. My comment on gains wasn't to mean you'll see huge gains from a filter, but that to see any real gains from an exhaust it's needs to be a full system with filter and fuel management, not just a slip on. I suggested Power Commander because he said he was on a budget and those can be picked up for 150. I run the PC on my RR as it's street and just exhaust and filter with smog removal. I put Bazzaz on the GSXR because it's track and Bazzaz has QS and TC all in one box. Brian tunes all mine too, he likes Bazzaz because he's anal & picky lol. You do get control of all 8 with Bazzaz and PC now has an add on box that gives control of all 8 also but in reality you don't need control of the secondary injectors unless you have a highly modded motor or are a perfectionist like Brian lol. But I guess that's why I only let him touch my tunes lol