I was just wondering because the mkiv site says how to do but not what it is used for... will it help eliminate the vsv when trouble shooting a boost problem or what... let me know cause i have a problem with second turbo it will spike to 14psi then fall to 7 cant keep the boost up... The first turbo will go to 10 and hold it all the way to redline... please let me know if you know a way to trouble shoot this problem... thanxl......