there is no point in getting an chargepipe unless your adding meth or want a bov instead of the stock diverters.
you can get an intake for $100. those do help some.
there was a supposed wastegate rattle, that annoyed some people, i have not heard it on mine. but there are simple fixes for them.
after all the recalls have been done the fuel pumps seem to be ok, and they still have a 10 year 120k mile warranty.
the more i drive my Xi the more i love it.