As far as hitting 9K+ I don't know how often I would be doing it. My car is loud regardless of RPM at WOT. I nearly cleared the room at the MSP dyno day the last time. I have a very low (high number) final drive which allows me to stay up top quite a bit. I would say the top of 1st at 9500 is only 35mph give or take. My speedo doesn't work so I'm just guessing. lol. I was very close to snagging a pair of seats from a Del Slo that I repossessed, they weren't n very good shape but they have much better bolstering than the stock Si seats. I ended up selling it before I got around to robbing it. I was looking on racer wholesale and was thinking about getting one of the light aluminum fixed seats just to use when I go racing. Some of the more plain aluminum seats can be had for $175 for what looks to be a pretty good seat.