[dvldoc]

Yes that calculation looks dead on, Pretty much all v8 will get a M14 to M12 nozzle.

Dual M7's is what your going to be using for that set up, I would mount the nozzles about 3 inches before the coupler on both pipes.

This give you clearance of the AC line on the left and the fuse box on the right.

Funny thing about some audi's the pump fits right in the space under your fuse box, At least on pretty much all A4's It drops right in place and you can put the cover back on it and it remains invisible. JUst check if yours is the same.

Not sure if there is anyroom in that trunk under that square covered piece on the right but might be a good place as well.