Theres an easy way of getting the boost hose into the car. Remove the glovebox. Remove the upper strut brace from the engine bay. Remove the airbox and battery cover. Pull back the rubber trim near the chassis number and lift up the access panel.
This reveals some black electrical trunking. Pop the top off and follow the wiring in the trunking to the upper scuttle area where the pollen filter is and locate the black rubber bung/grommit, remove it and poke a hole in it to feed the hose through. Get a strong wire or such like (I used an undone coat hanger) and feed it down through the the hole the grommit lives in and you will see it emerge in the footwell. Tape the hose to it and pull it through - job done, maybe 45mins at the most!
