• Dyno and drag strip proven: A design that's been battle - tested on the dyno and drag strip! • Patented triple ball - bearing: Our turbo features a patented triple ball - bearing design for smooth operation. • Dual Apex Wheel™ Technology: Equipped with the innovative Dual Apex Wheel™ Technology for enhanced performance. Specifications: - Compressor Wheel: 97.9 mm inducer, 149.9 mm exducer - Turbine Wheel: 118.1 mm inducer, 112.9 mm exducer Options: - Turbine Housings available: T6 unnavided (1.00 A/R, 1.14 A/R, 1.28 A/R, 1.40 A/R, 1.54 A/R), Stainless Steel V - band (1.28 A/R)

The APEX TURBO 9813 550 Series is a high - performance turbocharger designed for car enthusiasts and professional racers. It's perfect for use on drag strips and in high - performance racing scenarios. The compressor wheel has an inducer of 97.9 mm and an exducer of 149.9 mm, while the turbine wheel has an inducer of 118.1 mm and an exducer of 112.9 mm. You can choose from different turbine housing options like T6 unnavided and Stainless Steel V - band, each with various A/R ratios to suit your specific needs.