The 93 octane tune is running great for me. Huge power increase, but the power delivery still feels smoother than stock, just like the 87 octane tune. It's only 25 degrees here, so that helps. I might dial it back to the 91 octane tune in the summer. Someone asked about fuel mileage and I'm getting my worst mpg ever today, 12.2mpg vs 14-15mpg before. But I don't necessarily blame the tune since I'm being a leadfoot today. As for the intake sound, I'm not sure I'll ever notice it over the increased exhaust noise. I have a Borla S-type installed and it's just screaming now.