Tremendous Lag and Leak liability from a rear turbo setup. My buddies twin turbo C7 is a monster under boost when it isn't leaking. We 4G63's get him right up to a 100mph then he starts catching up! He passes me when I reach 147mph! Just don't do 80mph roll-ons as his Vette shreds tires up to 160!!!! Kinda freaky to see tires chunkin at over 100!!! His rear twin turbo is always leaking somewhere from all that piping so I can't reccommend it unless of course your motors back there!! Your going to have to pay someone to retune on a standalone ECU. I don't see many post on how much boost these motors take before they vent the BLOCK!!! Ouch!! So Supercharging or Turbo's are going to be a very expensive option for what 50 - 100awdhp? NOS for me on this plateform would be much more practical, but I'll let you know in a month or so. I got to check with my Tuner at Full Function, maybe they have some other idea's for me to spend my money!!!