Not too sure, but a guy in a Skyline was playing silly buggers with me on the way home from work last night. Windows down, music blaring. Copping greasys from his gf. Speeding up and slowing down level with me. I slowed down a bit, dropped it into 2nd and crept up level. Now I should point out that micky_tee installed a trd intake on the weekend. 5,900 rpm ... 6,000rpm ... I punched it. I then saw the immediate flinching and discomfort of the Skyline owners gf. Most likely she went deaf for a bit afterwards...haw haw. Moral is: A 2zz-ge with an intake hitting the hi-cam > a doof doof stereo.