After doing the BAK and direct exhaust, replaced my plugs with new standard NGK's (will install the Iridiums this week) custom right air intake and a new test with a custom LEFT air intake, I realized today that no matter what performance mod u do,(putting aside the HC pistons and stuff) it always matter to get the highest octane gas u can get in your tank. I kept on refueling at the same gas station for the past year, and today just ran out of gas in a different neighborhood. So I refueled at another gas station from a diff. company. I got today what they call in Europe Super 98 gas and took a longer road back to the city. ****, the beast was roaring like never before and closed up on an (accelerating)car faster than I imagined. I really felt the extra power from the new gas and loved it big time!! In the last period, I sort of felt like I almost reached the power limit of the bike (with the previous gas), but today I realized there's always some power buildup in this great bike, ready to be unleashed.