im looking for a big turbo kit for my 2006 WRX. im not to sure what to get but i have been looking at the AMS Rotated GT3076 V Band Turbo Kit. and the AMS Rotated GT3582 V Band Turbo Kit. anyone know the main difference between the two? they are very expensive around 6k... any other suggestions for any other turbo kits? i want to go big... and if i was to get a big turbo kit. what els would i need to be able to run it right.