Find Parts That Fit Your Vehicle

Kits

BMW fuel system kits provide a comprehensive solution for maintaining and upgrading the fuel delivery system, ensuring optimal engine performance and efficiency. Over time, fuel pumps, injectors, filters, and pressure regulators can wear out, leading to poor fuel economy, hard starts, misfires, and engine hesitation. Common problems include clogged fuel injectors, failing fuel pumps, and fuel pressure inconsistencies, which can result in rough idling and reduced power. Upgrading or replacing worn components with a complete BMW fuel system kit restores proper fuel flow, enhances throttle response, and improves overall drivability. Our selection of OEM and high-performance BMW fuel system kits includes everything needed for a reliable fuel system refresh, ensuring a precise fit and long-lasting durability for a wide range of BMW models.

Sort By:

JB4PRO Flex Fuel Add On Harness - B58/S58

T#:49822568

Part#: JB4PB58FFAOH

In Stock

$ 49.00 USD

Add to Wish List

Qty

$ 49.00 USD

Add to Wish List

Take your B58 or S58 build further with the JB4PRO Flex Fuel Add-On Harness—a simple, plug-and-play way to add an ethanol sensor and optional fuel pressure sensor to your JB4PRO setup. Keep your install clean, your wiring organized, and your tune dialed to match every fuel blend in the tank. Why it matters: Plug & Play: Connects directly to your JB4PRO—no cutting or splicing required. Sensor Ready: Supports ethanol and fuel pressure sensors for precise, real-time fueling adjustments. Clean, Safe Installation: Includes a 12 V adapter and inline fuse for hassle-free integration. How it works: This harness links your JB4PRO tuner to your flex fuel hardware. It’s not a complete flex fuel kit—you still need a compatible ethanol sensor—but it gives your JB4PRO the accurate readings it needs to adjust timing, boost, and fueling for E30, E50, or E85 blends.

Show More Show Less

Flex Fuel ECA - Plug and Play - Dorch HPFP - F22, F23, F30, F34, F32,...

T#:55713497

Part#: DE-581-ECA-14

In Stock

$ 549.00 USD

Add to Wish List

Qty

$ 549.00 USD

Add to Wish List

The Dorch Engineering CAN-based Flex Fuel ECA Kit delivers real-time ethanol monitoring directly to your BMW's DME. Designed explicitly for Gen1 B58

Flex Fuel ECA - Plug and Play - Dorch HPFP - G42, G20, G22, G23, G26,...

T#:55713510

Part#: DE-582-ECA-241

In Stock

$ 549.00 USD

Add to Wish List

Qty

$ 549.00 USD

Add to Wish List

This hardware package gives your BMW powerplant the ability to scale output dynamically based on your exact ethanol blend. No more draining the tank or flashing different maps at the gas station

Flex Fuel ECA - Plug and Play - OEM HPFP - G42, G20, G22, G23, G26, G...

T#:55713511

Part#: DE-582-ECA-242

In Stock

$ 549.00 USD

Add to Wish List

Qty

$ 549.00 USD

Add to Wish List

This hardware package gives your BMW powerplant the ability to scale output dynamically based on your exact ethanol blend. No more draining the tank or flashing different maps at the gas station