Transmission Rebuild?

[Kenny Boxster]

I'm serious as a heart attack. However I don't know much about the 6- speeds. The only difference the gearing ration would be 1-2mpg more on highway speeds due to lower rpms at higher speeds.

Lower gearing = more rpm at higher speeds. Higher gearing = lower rpm at higher speeds. Lower gearing is more optimal in racing applications as the torque curve is optimal at higher rpms of 4-5k rpms. Higher gearing is more optimal in econoboxes, as lower rpms= less power but more efficiency. That is why my honda fit is 2,000 rpm going 70mph and that is why the boxster is 2,700 rpm at 70mph, both being in 5th gear respectively.