wanted it to be a special car, so he signed it and so did Graham Beham, an engineer who works for Lingenfelter and one of the original project engineers on the ZR1."
Fitting the ball bearing twin turbos into the engine bay was not an easy task. Probably the most difficult engineering work was packaging. Lingenfelter had to route the air to the turbos via stainless steel pipes inside the frame. The turbos are hidden from the top, so the engine compartment looks stock except for the big air box in the front. You’ve got to put the car on a lift to view the turbos. Lingenfelter fabricated new exhaust
manifolds which fit right up underneath the exhausts ports. The object was to get the turbos as close to the exhausts as possible to minimize turbo lag.