Hi guys is there a hp tune 4 xr6turbos,I ask this because I was speaking to a engine builder & he said it cost him 15 Gs 4 the program & it will be real time,Spoke to un other guy with a F6 he said he had his done allready & is very happy.It sound to me its the same thing the Expensive Daewoo girls are using.Anyone got any idea thanks.BB