Spool B58/S58 Billet Race Torque Converter Upgrade – BMW ZF8HP

Spool Performance X58 Billet Race Torque Converter is engineered for high-output BMW B58 and S58 applications using compatible ZF 8HP50, 8HP51 or 8HP76 transmissions.

• Billet drive plate
• Billet stator
• 3800–4000 RPM high-stall specification
• Designed to retain street-friendly engagement while improving launch capability
• No exchange core required

Fitment: B58/S58-powered BMW vehicles equipped with ZF 8HP50, 8HP51 or 8HP76. Confirm transmission code/VIN before ordering.

Dispatch: Special order — allow 2–3 weeks.

Supplier

Spool Performance

Product System

• Drivetrain
• Transmission & Driveline

Vehicle Fitment

• BMW 2 Series F22 Lci B58 ZF 8HP5x
• BMW 2 Series F23 Lci B58 ZF 8HP5x
• BMW 3 Series F30 Lci B58 ZF 8HP5x
• BMW 3 Series F31 Lci B58 ZF 8HP5x
• BMW 4 Series F32 Lci B58 ZF 8HP5x
• BMW 4 Series F33 Lci B58 ZF 8HP5x
• BMW 4 Series G22 B58 ZF 8HP5x
• BMW 4 Series G23 B58 ZF 8HP5x
• BMW 4 Series Gran Coupe F36 Lci B58 ZF 8HP5x
• BMW 4 Series Gran Coupe G26 B58 ZF 8HP5x
• BMW 5 Series G30 B58 ZF 8HP5x
• BMW 7 Series G11 740I B58 ZF 8HP5x
• BMW 7 Series G12 740Li B58 ZF 8HP5x
• BMW M2 G87 S58 ZF 8HP76
• BMW M240I G42 B58 ZF 8HP5x
• BMW M3 G80 S58 ZF 8HP76
• BMW M3 G81 S58 ZF 8HP76
• BMW M340I G20 G21 B58 ZF 8HP5x
• BMW M4 G82 S58 ZF 8HP76
• BMW M4 G83 S58 ZF 8HP76
• BMW X3 G01 B58 ZF 8HP5x
• BMW X3M F97 S58 ZF 8HP75
• BMW X4 G02 B58 ZF 8HP5x
• BMW X4M F98 S58 ZF 8HP75

Confirm chassis, engine, drivetrain and production-year compatibility before ordering.

Supplier Part Number

SP-58-TQCNV-NC

Built by Boost & Tune Support

BBT can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.