depending on the turbo u can run more boost, if u run a t25 then 14 pounds will be good but anymore will make the stock clutch slip...... if u go for a t 4 lets say then about 7 to 8 pounds is the max on that clutch, i sugest replacing your rod bearings and head gasket, and make sure u always have the right amount of oil becus ka's exspecually boosted ones will knowck with low oil lmk if u have any more questions