Stand alone fuel system
MTI sells a nice easy to install low side for smaller builds, Crawford Racing sells a nice low side, Fore sells a good in tank solution (dual or triple), and some others out there. You can use a system like Holley (CRFueler), ProEFI, MegaSquirter to control secondary fuel pumps or as simple as a Hobbs switch. Mine was over $2k but I went with expensive lines, fittings, pump, regulator, filter, etc. Just depends on your power goal and future plans. You can tie into the quick connect in the rear of the car near driver wheel up in torque tube well if you just need to keep it up for a couple extra hundred horse. But also depends if you want to run ethanol, you need 30% more fuel by volume to make the same power as pump gas.
You can also do a 2019 Z06 in tank pump (Same as ZR1 I believe), but just as with the Fore in-tank you have to drop the tank, which isn't so much fun, especially if an A8. You can lower the tranny (M7) disconnect the crossover tube, and get the one side down that's about as easy as it gets but it's still painful. Trust me.






