Difficulty of Turbo in a 2003? and Gas Gauge Misreads?
 

So just bought myself a used, 2003 GTS, but two things have presented themselves. One I would like to install a (hopefully) twin turbo system, but have no idea as to the difficulty of this. The gas gauge is also a mystery, as it tends to be misread sometimes but will correct itself. Any ideas or advice would be much appreciated!