BBK 89-92 GM 305 350 Twin 58mm Throttle Body BBK Power Plus Series

Already running headers and a performance exhaust on your 1989-1992 Camaro or Firebird? This BBK Twin 58mm Throttle Body is the next piece of the puzzle to help your engine breathe easier. It's designed as a direct replacement for your stock throttle body, which can be a bottleneck for airflow, especially on modified engines. By increasing the amount of air that can enter your engine, you can expect improved horsepower, torque, and a more responsive feel when you press the gas pedal.

BBK builds these Power Plus Series throttle bodies from a new, high-quality 356 aluminum casting that's CNC machined for a precise fit. They use OEM-style linkages, double-sealed bearings, and O-ringed throttle shafts to ensure smooth operation and a good seal. This setup offers improved airflow, up to 30% more than stock in some cases, without needing a custom tune. It works with your vehicle's factory computer, making installation straightforward. This throttle body also fits the 1989-1991 Corvette, 1991 Syclone, and 1992-1993 Typhoon.

When you're installing this, make sure to transfer over any sensors from your old throttle body, and use the included gaskets and hardware for a proper seal. It's a solid option for anyone looking to get more out of their TPI 305 or 350 engine.