1. How much would this upgrade cost ( i know the single ballbearing upgrade from turbonetics is in the 500ish 600ish range) and who in our area would be willing to sell/do it.
2. what can my expectations be as far as spool up times
3.longetivity reliability expectations = ?
4. have any of you guys done any of you 2.3T guys done any upgrades like these ? is it very difficult/delicate ?