you can't run 2 filters on the turbo setup.. you run from the turbo compressor to the intercooler, then on the piping from the intercooler to the throttle body is where you put the blow off valve, these are called chargepipes. you also can run a filter off the compressor housing to let it filter out the air just like an intake filter does. but if the piping from the turbo compressor to the throttle body is not connected together you will not be boosting but you will ruin the turbo extremely fast. i'm on
www.homemadeturb.com and my set up hasn't costed more than $600 and i've got everything, not no $2000.. you can buy a Greddy turbo kit for $1300 so where does he get $2000 from??? i dunno but its not that hard if you have everything.