Spool Performance Spool B58/S58 Billet Race Torque Converter Upgrade - No Core Required! SP-58-TQCNV-NC

Spool Performance B58/S58 Billet Race Torque Converter Upgrade

Unlock the full potential of your B58 or S58-powered vehicle with the Spool Performance Billet Race Torque Converter. Engineered specifically for high-performance builds running ZF 8HP transmissions, this upgrade is designed to handle increased power levels while maximizing launch performance and overall drivability.

Built with precision billet components and optimized for high-stall performance, the Spool Performance X58 Torque Converter is the perfect solution for enthusiasts running upgraded turbo setups and demanding more from their drivetrain.

Key Features

• Billet drive plate for superior strength and durability
• Billet stator for improved efficiency and performance
• High-stall option: 3800–4000 RPM
• Designed for high-horsepower and big turbo applications
• No core required for easy installation
• Compatible with multiple ZF 8HP transmission variants

Performance Benefits

• Increased launch power and acceleration
• Optimized stall speed to fully utilize turbocharger powerband
• Maintains smooth and responsive street drivability
• Improved torque transfer and drivetrain efficiency
• Ideal for both track builds and high-performance street cars

High Stall Without Compromise

Unlike many high-stall torque converters that sacrifice comfort, the Spool Performance X58 is engineered to retain near-OEM driving characteristics. It delivers aggressive launch capability when you need it, while still providing smooth operation in daily driving conditions, including stop-and-go traffic.

This balance makes it one of the most versatile performance torque converters available for B58 and S58 platforms.

FITMENT

BMW / Toyota vehicles equipped with:

• B58 Engine
• S58 Engine
• ZF 8HP50 Transmission
• ZF 8HP51 Transmission
• ZF 8HP76 Transmission

No Core Required

This is a complete, ready-to-install torque converter. No need to send in your stock unit, eliminating downtime and simplifying the upgrade process.

Upgrade your drivetrain with the Spool Performance B58/S58 Billet Race Torque Converter for maximum launch performance, improved turbo efficiency, and uncompromised daily drivability.