Hey, I have a 98 A4 1.8T with a chip, S4 stock exhaust, K&N filter, and diverter valve. The car has 120,000 miles, i got it at 100,000. The chip and the exhaust boosted it real lovely. I am thinking about putting in a new turbo, maybe the KO4. I don't know if the clutch will be replaced but it's on it's way out. I will definately have to change the clutch if I put in the KO4 right? And someone told me i'll be slower on the start but when i get moving the car will make a noticable difference like when I installed the chip. Can i expect this? Thanks.