Products

Spool Charge Pipe Upgrade Kit | [B58 Gen 1 & B58 Gen 2]

Spool Performance Charge Pipe Upgrade Kit For 2016–2024 F & G Series M140i, M240i, 340i,...

Spool Performance 8HP45, 8HP50, 8HP51 Stage 2 Upgraded Transmission DIY Parts Kit

After over a year of rigorous testing, Spool Performance proudly presents our Stage 2 Transmission...

SPOOL B58 G2 / S58 Plug and Play Motiv Reflex Plus Harness

-40%

Spool Performance B58 Gen 2 / S58 Plug-and-Play Reflex+ Harness The Spool Performance Plug-and-Play Harness...

Spool Performance Handheld Ethanol Content Analyzer

**This product is currently on backorder. Restock expected by mid-June. Order yours now to join...

B58 5 Inch Stainless Steel Downpipe Upgrade [Race Downpipes]

**This product is currently on backorder. Please email customer_service@spoolperformance.us for information regarding availability.** Spool 5...

Spool Performance 8HP45, 8HP50, 8HP51, 8HP70, 8HP76 Aluminum High Capacity Transmission Oil Pan

Spool Performance Aluminum 8HP Transmission Oil Pan (2 Quarts of fluid over stock!)  The Spool...

SPOOL B58/S58 Plug and Play Ethanol Sensor Harness

-50%

Spool Performance B58/S58 Plug and Play Ethanol Sensor Harness Connect our ethanol sensor harness to...

B58 5 Inch Stainless Steel 200 CELL Euro 5 Catted Downpipe Upgrade [Race Downpipes]

Spool 5 Inch B58 Downpipe 200 CELL CATTED - EURO 5 CATS Euro 5 catalytic...

Spool Performance 8HP45 / 8HP50 / 8HP51 upgraded billet 7075-T6 D Clutch Drum

-40%

Spool Performance 8HP45 / 8HP50 / 8HP51 upgraded billet 7075-T6 D Clutch Drum   The...

SPOOL B58 G2 / S58 FULL RACE PTCAN-2 MOTIV REFLEX HARNESS

-67%

Spool Performance B58 Gen 2 / S58 Plug-and-Play Reflex+ Full Race Harness   This is...

Spool Performance 8HP45, 8HP50, 8HP51 Billet Aluminum High Capacity Transmission Oil Pan Service Kit

Spool Performance Billet Aluminum 8HP Transmission Oil Pan Service Kit Our billet transmission oil pan...

Spool Performance ZF 8HP45 / 8HP50 / 8HP51 Billet 300M C-Hub Cog Drive

Spool Performance ZF 8HP45 / 8HP50 / 8HP51 Billet 300M C-Hub Cog Drive The factory...

BMW B58 Gen2 Auxiliary Split Fuel System

-28%

Spool Performance B58 Gen 2 Auxiliary Fuel System The Spool Performance B58 Gen 2 Auxiliary...

Spool Performance ATC-13 Stage 2 Transfer Case DIY Kit

-22%

Spool Performance ATC-13 Stage 2 Transfer Case DIY Kit The ATC-13 transfer case is a...

Spool Performance 8HP45, 8HP50, 8HP51 Stage 2 Upgraded Transmission - Build at Spool Performance HQ

We have been getting a lot of requests to have the DIY Kits installed and...

Spool Performance 2021+ Mild Hybrid 8HP51 Oil Pan

Spool Performance 2021+ Mild Hybrid 8HP51 Oil Pan When building a transmission, replacing the oil...

Spool Performance Split Fuel Surge Tank

High-horsepower engines don’t just need more fuel — they need stable, predictable fuel control. The...

Spool Performance FPR-T Compact Billet Fuel Pressure Regulator

-10%

Spool Performance FPR-T Compact Fuel Pressure Regulator Precise, stable fuel pressure is the foundation of...

Spool Performance B58 Engine Build

Spool Performance B58 Engine Build Program $8,910.00 is the price for labor for assembly, please...