BMW N55 Lift Kit HPFP Upgrade - Dorch Engineering DE-LK

BMW N55 Lift Kit HPFP Upgrade - Dorch Engineering DE-LK We are currently low on N55 cores, so any N55LK orders purchased with a core deposit COULD have up to a 2 week lead-time (although 3-5 days is more typical). We are proud to offer a game-changing...

BMW N55 DS25 HPFP Upgrade - Dorch Engineering DE-55-25A

BMW N55 DS25 HPFP Upgrade - Dorch Engineering DE-55-25A   DS25-250 HPFP SpecsDS25-250DS25-250 + 38% N55LKDS25-250 + 49% N55LK  Flow Potential Gasoline 750whp 900whp 1000whp Flow Potential E85 550whp 690whp 770whp Operating...

BMW N55 DS15 HPFP Upgrade - Dorch Engineering DE-55-15A

BMW N55 DS15 HPFP Upgrade - Dorch Engineering DE-55-15A DS15-250 HPFP SpecsDS15-250DS15-250 + 38% N55LKDS15-250 + 49% N55LK  Flow Potential Gasoline 550whp 700whp 750whp Flow Potential E85 400whp 560whp 610whp Operating Pressure...

BMW N55 Wireless Ethanol Analyzer Kit - Spool Performance WK-9C9V-B998V-KPF

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 N55 HELIX Support Bracket - Spool Performance SP-HX-SPPBRN55

BMW N55 HELIX Support Bracket - Spool Performance SP-HX-SPPBRN55 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...

BMW N55 FX-200 Upgraded High Pressure Pump - Spool Performance SP-FX-200-N55-NENF-DFVA

What is the FX-200? The FX-200 is a Stage 2 upgraded high-pressure fuel pump for the BMW N55 motor that replaces our existing FX180 offering. The pump features a bigger bore size than stock that translates into roughly double the flow when compared to...

BMW N55 FX-170 Upgraded High Pressure Pump - Spool Performance SP-FX-170-N55-NENFSDG

What is the FX-150?  The FX-170 is an upgraded high-pressure fuel pump (HPFP) designed for BMW N55-powered 35i single-turbo models. Featuring a larger bore than the stock pump, it delivers approximately 50% more flow, making it ideal for higher...