Throttle Body Flow Booster Horsepower for Chevrolet Corvette (1985-1996) 5.7L

High-Flow Throttle Body Flow Booster for 1985-1996 Chevrolet Corvette

Improves engine breathing: Mounts inside the factory throttle body to eliminate intake tract turbulence, increasing total airflow by 30 CFM for measurable horsepower and torque gains.

The Stock Corvette Intake Bottleneck

The factory twin-port throttle body on the C4 Corvette's 5.7L engines suffers from a blunt center divider between the primary butterflies. As intake velocity increases, this flat casting creates significant power-robbing turbulence, boundary layer separation, and parasitic drag just before the plenum. This disrupts laminar flow, resulting in a noticeable hesitation in throttle response and a restriction in top-end volumetric efficiency.

The Engineering Solution

The Throttle Body Flow Booster acts as an aerodynamic air foil, smoothly bridging the gap between the twin throttle bores. By reshaping the leading edge of the center divider, it converts chaotic, turbulent air into a high-velocity laminar flow path directly into the tuned port injection (TPI) or LT manifold. This bolt-on modification yields a proven increase in intake flow by up to 30 CFM, delivering up to 12 additional horsepower and sharpening off-idle throttle response. Installation takes five minutes with no permanent modifications, utilizing the OEM tuned port injection plate cover gasket.

Technical Specifications

Compatibility

• 1985-1992 Chevrolet Corvette TPI L98
• 1993-1996 Chevrolet Corvette LT1 / LT4
• 1985-1992 Chevrolet Camaro / Pontiac Firebird TPI
• 1993-1997 Chevrolet Camaro / Pontiac Firebird LT1
• 1994-1996 Chevrolet Impala SS LT1
• 1994-1996 Chevrolet Caprice LT1
• Note: Will not fit the ZR1 / LT5 engine.

The Chevrolet Muscle Caliber

For a classic American V8, maximizing volumetric efficiency translates directly to raw power and immediate throttle authority. Correcting the factory throttle body geometry maximizes the breathing capability of the Small Block platform.