Well, before today I would have had to say the $25 I spent on subframe inserts.... but now...
+
= a completely new car!
$20 for the clutchstop, and $70 for the weighted short shifter (not a SSK, but a shorter shifter). The car drives so differently now, I had to cut down the clutchstop and drill the hole wider, but it was a simple installation.
So, what was yours?...