[SKooT1027]

I was using a 928GTS and everyone around me seems to have Boxster S's, so I figured id give it a try. Some people are pulling times in the mid 9 seconds with this car, however I just got mine and tunes it and its pulling just barely under 10.3 best. My 928 was doing this, I expected much better from the Boxster. Any suggestions with what I'm doing wrong? I purchased as high of weight reduction, port n polish and NO upgrades as my level allowed, and followed the recommended specs from the forum