Any car I have seen with a rear mounted turbo (the few that there are around here) has a beat to hell charge pipe that runs to the front of the car. So a DD setup would be a nightmare. Most piping used is aluminum but that isn't ideal for abuse. You could run it thru the cabin if its a race car though. But then there is the lag issue. Twins would help that but I sure would like mine mounted up front.
D1SC Procharger Forged cammed LTs-SVE Drag Big & Littles-MT DR 275/60/15-D&D T56 Magnum QuickTime steel bell-McLeod RST Twin Disc-4.10 Detroit Locker Moser 31 spline-MM TA PHB-MM Extreme HD LCAs FLSFC-Big Red Race BOV-Bilstiens