Your fuel system will be limited to how much power you want. Most, if not all, S/C systems come with fuel injectors and a BAP. Your fuel economy will be dependent on your right foot. When I got my blower put on, it dropped because I was just having too much fun, but I reset the screen and drove more conservatively, which brought me back up to where I was. If you decide to go for more power, that is when you'll see the fuel economy drop. One thing that will affect your wallet will be gas. It will be HIGHLY recommended that you use Premium gasoline to help prevent detonation. My car as it sits now I drive every day.
ECS base supercharger (NOVI 1500SL), ECS AlKY control kit, 92mm TB, ARH 1 7/8" LT's non-catted, Borla 3" exhaust, ID850 injectors, Squash fuel system, ECS Big Blower Cam, MGW short throw shifter, DSS 1000hp axles, LGW differential cover, billet caps, Tech AFX heater hoses, Pedders differential bushings, Eaton TrueTrac differential, PRC dual valve springs, Katech C5R timing chain, ATI balancer, Meilings oil pump, Pfadt Trailing Arms, Pfadt Tie Rods, Pfadt Sway Bars, Pfadt End Links, DSS Aluminum Driveshaft
UNDER MAJOR OVERHAUL!!