4 Series

DS25-350 HPFP Specs DS25-350 DS25-350 with + 27% Cam Upgrade Flow Potential Gasoline 770whp 950whp Flow Potential E85 560whp 710whp Ope...

We are proud to offer the world’s first B58 HPFP upgrades! Our Stage 2 kit is a bigger, better version of our Stage 1 kit for some of the more ext...

DS25-350 HPFP Specs DS25-350 DS25-350 with + 27% Cam Upgrade Flow Potential Gasoline 770whp 950whp Flow Potential E85 560whp 710whp Ope...

DS25-250 HPFP Specs DS25-250 DS25-250 with + 40% Cam Upgrade Flow Potential Gasoline 750whp 1000whp Flow Potential E85 550whp 770whp Op...

DS25-250 HPFP Specs DS25-250 DS25-250+ 38% N55LK DS25-250+ 49% N55LK Flow Potential Gasoline 750whp 900whp 1000whp Flow Potential E85 550...

Not sure which harness you need? Click Here DS15-250 HPFP Specs DS15-250 DS15-250+ 38% N55LK DS15-250+ 49% N55LK Flow Potential Gasoline 55...

Dorch Engineering Camshaft +40% Fueling Lift Kit HPFP Fuel Pump Upgrade for B58 Toyota Supra A90 J29 (Gen 2) * COMING SOON*

Dorch Engineering Camshaft +40% Fueling Lift Kit HPFP Fuel Pump Upgrade for B58 BMW M240i G42 M340i G20 M440i G22 540i G30 640i G32 740i G11 840i ...

After years of setting records with our S55 and N55 “Lift Kit” camshaft products, we’re now releasing our Gen1 B58 “Lift Kit”. This is an absolute...

We are proud to offer the world’s first B58 HPFP upgrades! This is a complete plug-and-play kit to support up to 560whp on E10 fuel (this number c...

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 mor...