B7, or, do the upgrades and don't worry about it. The car can take more than you'll give it, I'm sure. Few, if any, drive these cars hard enough to hurt them.
If you plan to keep the car for 100k, then I wouldn't do it. If you plan to keep the car four years or so, who cares. Have fun.
, ordered 5.11.16, custom build in process.
Dropped in Munich on 9/28, Redelivered by ELEKTRA, delivered to my home 11/2.