Rawhide

I'm also looking to convert a Cayenne S.

I visited my local fitter to fit a PRINS kit with flashlube, but I'm nervous as they are not sure what size tank they can locate in the car. I want a tank to go in the spare wheel well as we need our boot space. I'm happy if the floor raises a bit.

I also have the BOSE system and there is a component in there. I think it's an sub. Has anyone managed to neatly relocate it?

I'm also told they want to fit the filler plug near the rear wheel in the bumper. I'd like to keep it in the fuel filler tank if possible.

I do appreciate many will view this as sacrilegious but it will suit our needs perfectly and I'm keen to go ahead but want it done almost invisibly.

ltc

If you eliminate the Bose 'subwoofer', I doubt you would notice a significant difference.
It's not really a sub, merely a "ported bass enclsoure" containing 5 1/4" drivers....

Also, the audio system won't even know/care it's gone.