C7 Corvette Grand Sport Stage 1 $3,549.00‡ This package includes: AFE Cold Air Induction System (C7 Halltech Option) 1-7/8” T304 Stainless Steel Long Tube Headers 3” Stainless Steel X-Pipe .

C7 Corvette Grand Sport Stage 2 $7,749.00‡ This package includes: Billet Core Camshaft (Stage 1-4) Dual Valve Spring Kit w/ Titanium Retainers Hardened Chromoly Pushrods Bronze Bushing Trunnion Rocker .

C7 Corvette Grand Sport Stage 3 $9,949.00‡ This package includes: MSD AirForce Intake Manifold Katech 103mm Throttle Body Billet Core Camshaft (Stage 1-4) Dual Valve Spring Kit w/ Titanium .

C7 Corvette Grand Sport Stage 4 $11,949.00‡ This package includes: CNC Ported LT1 Cylinder Heads (Exchange Core) Deck Option (.010, .020, .030) MSD AirForce Intake Manifold Katech 103mm Throttle .