I plan on modifying my '99 323i in the not too distant future and curious about parallel changes I should make to handle the extra power. I assume that any minor Jim C. or Dinan upgrades will not require changing the suspension, etc. but supercharging is a different story. If I upgrade the shocks, springs and wheels (16" to 17" or 18"), what else requires changing. When I asked the dealer about upgrading to the sport package offered by BMW, they also indicated other components are changed out as well.
Thanks for the help.