Big problem with the rear mounted turbo setup is the length of it.
It'* MUCH heavier, It'* many more points to fail, it'* costlier, it'* more susceptable to damage, it'* a larger pipe to fill, and will be less responsive, and such. Mounting air filters under the rear bumper too.
Some cars it'* almost necessary on (vettes), and on trucks it'* got no real big issues, but on larger cars there'* no reason you can't fab/modify to get the turbo under the hood, or on the Down pipe. One member on another board was adament about this setup, and wouldn't accept the issues it can have.
The idea of puilling exhaust out does have some merrit, but If you're digging that deep, just run open headers.
'06 Vee Dub GTI 2 door Tornado Red
- 2.0 Turbocharged, Intercooled, Direct Injected, 6 Speed DSG, Underbody Aero, 17" Classix
- Moonroof, Bi-Xenon headlamps, Interlagos Plaid Sport Seats, 6 Disc In-dash, iPod integration, GTI Monster Mats (winter)
'93 Bonneville SE Purple Pearl H4U package - picked up June 23, 2003, Traded-in June 28, 2007...