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...

B58 5 Inch Stainless Steel Downpipe Upgrade [Race Downpipes]

Spool 5 Inch B58 Downpipe Why Settle for the Same Rebranded Downpipes? Let’s face it—most...

Spool Performance Handheld Ethanol Content Analyzer

The Spool Performance Handheld Ethanol Content Analyzer is a must-have tool for anyone who wants precise...

SPOOL B58 Gen 1 Plug and Play Motiv Reflex Plus Harness

-40%

Spool Performance B58 Gen 1 Plug-and-Play Reflex+ Harness The Spool Performance Plug-and-Play Harness is the...

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 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 FX-350 Upgraded High Pressure Pump [Gen 1 B58]

Spool Performance is proud to introduce the FX350 High-Pressure Fuel Pump, a core upgrade in...

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...

BMW B58 Gen1 Auxiliary Split Fuel System

-28%

Spool Performance BMW B58 Gen 1 Auxiliary Fuel System The Spool Performance BMW B58 Gen...

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...

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 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 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...