BMW N54/N55 Helix HPFP Overdrive Unit - Spool Performance SP-54HX-1

BMW N54/N55 Helix HPFP Overdrive Unit - Spool Performance SP-54HX-1 Spool Performance Helix HPFP overdrive system Spool Performance is really excited to introduce our latest product offering to the N54/early N55 community, the Helix overdrive unit. We...

BMW Wireless Ethanol Analyzer Kit - Spool Performance SP-BM-EA-1

The Spool wireless Ethanol Analyzer kit is a very cost-effective and robust ethanol content and fuel temperature monitoring solution. With the included smartphone app, the analyzer paired with a GM ethanol sensor can display the in-tank fuel's ethanol...

BMW HELIX Support Bracket - Spool Performance SP-HX-SPPBR

BMW HELIX Support Bracket - Spool Performance SP-HX-SPPBR Please note all new purchases of Helix kits now come standard with this bracket, so purchasing this separately is not necessary. This listing is for existing helix users who did not receive one...

BMW High Performance Stainless Steel 10 Micron Inline Filter Unit - Spool Performance SP-BM-10MFIL-1

The filter unit on the continental rotary high pressure fuel pumps perform an important function of final stage filtering of fine particle impurities before it reaches the hpfp pump chamber or worse, the injectors leading to leaky injectors. The problem...