[Boxtaboy]

As chaudanova says, you can do it without removing the bumper, but it is just a little harder to reach the upper mounting bolts on your exhaust if you don't remove the bumper, but you can still do it by blindly reaching for the bolts from underneath. Just so you know though, the 02 Boxster S exhaust is no different from your 00 base exhaust. The only difference is the dual tip vs. the single oval tip that is welded to the muffler. The sound is exactly the same, so don't expect any sound improvement. If, however, you bought the 2003+ exhaust, there is a noticeable improvement in the exhaust, as they changed the exhaust tone in 03 to give more growl.