BBK has you covered when it comes to affordable performance. Quality aluminum and machined to perfection, Power-Plus High Performance Throttle Bodies offer your Corvette's engine the best air supply available, funneling 25-35% more air than stock. Leash onto the 58mm and get a whopping 1000 cfm! 50 state legal (EO # D-245-7) 50 State Legal - EO# D-245-7