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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.
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Burger Motorsports - Corporate Logo
T#:49822568
Part#: JB4PB58FFAOH
In Stock
New Item
$ 49.00 USD
Free Shipping on orders $49 and up
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.
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Dorch Engineering - Corporate Logo
T#:55713511
Part#: DE-582-ECA-242
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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
Dorch Engineering - Corporate Logo
T#:55713497
Part#: DE-581-ECA-14
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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

Dorch Engineering - Corporate Logo
T#:55713510
Part#: DE-582-ECA-241
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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

Dorch Engineering - Corporate Logo
T#:55713500
Part#: DE-581-ECA-57
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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
Dorch Engineering - Corporate Logo
T#:55713513
Part#: DE-582-ECA-572
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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

Dorch Engineering - Corporate Logo
T#:55713512
Part#: DE-582-ECA-571
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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
Dorch Engineering - Corporate Logo
T#:55713502
Part#: DE-581-ECA-57OG
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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

Dorch Engineering - Corporate Logo
T#:55713503
Part#: DE-581-ECA-X34
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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

Dorch Engineering - Corporate Logo
T#:55713498
Part#: DE-581-ECA-14TU
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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
Dorch Engineering - Corporate Logo
T#:55713505
Part#: DE-581-ECA-X34OG
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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
Dorch Engineering - Corporate Logo
T#:55713499
Part#: DE-581-ECA-14OG
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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


Dorch Engineering - Corporate Logo
T#:55713509
Part#: DE-582-ECA-TS2
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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
Dorch Engineering - Corporate Logo
T#:55713501
Part#: DE-581-ECA-57TU
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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
Dorch Engineering - Corporate Logo
T#:55713504
Part#: DE-581-ECA-X34TU
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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

Dorch Engineering - Corporate Logo
T#:55713508
Part#: DE-582-ECA-TS1
Ships in 5 Business Days
New Item
$ 549.00 USD
$ 549.00 USD
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

Burger Motorsports - Corporate Logo
T#:27171924
Part#: BMSB58G1-PRM
Ships in 8 Business Days
Starting at $ 3,158.00 USD
Starting at $ 3,158.00 USD
Add more fuel via port Injection while increasing airflow in your Gen 1 B58 Powered BMW When it comes to intake manifolds it doesn't get any better than this. The Burger Motorsports intake manifold replaces your weak factory plastic B58 manifold with a direct fit high flow high strength aluminum manifold. Features port injection bungs located on the top of the manifold for easy access and optimal injector spray pattern, and 1/8" expansion vacuum ports perfect for gauges, BOV references, or Hobbs switches. Includes high-quality o-rings and all required hardware. Your factory high-quality intercooler core slides right in. Available with required port injection hardware (calibrated injectors with plug-and-play fuel line), or ala-cart without the extra fueling hardware. The optional high-quality Bosch EV14 42mm fuel injectors are offered in 550cc, 750cc, and 950cc options. For most 700-800whp applications we suggest the 750cc injectors, while the 550cc injectors are suitable for applications below 700whp. This kit includes a FREE $99.00 Burger Motorsports B58 Phenolic Thermal Intake Manifold Spacer FEATURES AND BENEFITS Increased flow Integrated top mount port injection bungs Much stronger than stock Looks amazing under the hood Lightweight aluminum construction All factory connections Extra ports for a BOV, Hobb's switch, or boost gauge Includes upgraded high-temperature o-rings Optional Motiv Reflex + Injector Controller Optional Injector Block Off Plugs Optional Deasthwerks 1000cc Injectors
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Burger Motorsports - Corporate Logo
T#:42133542
Part#: BMW-N55-PRM-950
Back Ordered
$ 1,138.00 USD
$ 1,138.00 USD