there are many good mods to do to your P6 prior to upgrading, you may not want to bother upgrading after some of them. google upgrades for youer P6 and see whats available. My friend did a few of the popular ones on his and it was a good improvement and closes the gap more then we'd like to admit over the P8. I think He did the belt doubled up, sub plater, brace and motor drive wheel ( part of the belt doubling).
