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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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Fuel-It! - Corporate Logo
T#:26038558
Part#: BMW-N54-PRM-950
In Stock
$ 1,088.00 USD
$ 1,088.00 USD
Fuel-It! - Corporate Logo
T#:8061332
Part#: S58FLEXFKIT
Ships on Aug 7, 2026
$ 479.00 USD
Free Shipping on orders $49 and up
This complete flex fuel kit installs in under 30 minutes and reads your exact E85 mixture in the Fuel-It! smartphone app or JB4 app if equipped. Features CNC machined fittings for a quick plug and play installation with nylon sleeved stainless steel braided fuel lines for life long leak free operation. The complete kit includes the following: Genuine Continental ethanol sensor Fuel-It! Bluetooth Universal Analyzer Two stainless steel braided fuel lines with black nylon sheathing to protect your other engine bay components Proprietary custom billet fittings for plug and play OEM integration One wiring harness with Posi-tap connector Supports stand-alone Bluetooth operation with the Fuel-It! app **For the BMW G-series JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI page option 2/3/4 input to enable.
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Fuel-It! - Corporate Logo
T#:21275562
Part#: FFK-S55-STO
Ships on Aug 7, 2026
$ 549.99 USD
Free Shipping
$ 549.99 USD
Free Shipping

BMW F8X S55 Flex Fuel Kit | Fuel-It! from Turner Motorsport is essential for those running E85 or ethanol blends in their BMW. This comprehensive kit offers a plug-and-play solution for installing a Bluetooth ethanol sensor in your S55-powered vehicle.

  • Complete Upgrade: Replaces stock fuel lines with -6an E85-compatible lines from the fuel tank to the engine bay.
  • Advanced Monitoring: Includes an ethanol sensor and Bluetooth analyzer for real-time ethanol content monitoring.
  • Versatile Compatibility: Supports both Bluetooth App and 5v analog output for integration with JB4 or flash tuning.
  • Custom Fitment: Options available for stock HPFP setups, port injection kits, or non-Fuel-It! port injection systems.
  • High-Quality Components: Features BMS custom billet aluminum fittings for a seamless integration without modifications.
  • Off-Road Use Only: Designed for off-road applications, ensuring high performance for enthusiasts.
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Innovate Motorsports - Corporate Logo
T#:22558994
Part#: INN3904
In Stock at Vendor
14% off MSRP $ 313.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 269.00 USD
Free Shipping on orders $49 and up
14% off MSRP
$ 313.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 269.00 USD
Free Shipping on orders $49 and up

Introducing the Innovate Motorsports MTX Digital Series "Dual Function" Gauges – now available! These 2 1/16" (52mm) gauges come with interchangeable faceplates and bezels, locking connectors for simplified installation, and MTS serial connections for seamless integration with other Innovate devices for data logging.

DISPLAY RANGE

  • Ethanol Content %: 0-100%
  • Temperature: -40-257 °F (-40-125°C)

KEY FEATURES

  • Ethanol Content
  • Error reporting for ethanol content sensor (Digital Display)
  • Fuel Temperature
  • Customizable exterior LED display
  • Programmable exterior LED color options
  • Selectable unit of measure in °F or °C
  • Programmable fuel temperature warning (outer LED)
  • 2-Configurable analog outputs
  • Ethanol Content: 0v = 0%, 5v = 100%
  • Fuel Temperature: 0v = -40 °F, 5v = 257 °F (-40-125°C)

MTX-D: Ethanol Content Percentage & Fuel Temp Gauge Kit includes Gauge (Black Faceplate, Black Bezel), Silver Bezel & White Faceplate, Harness, Program Cable (Serial), Ethanol Content Sensor, Quick Start Installation Guide.

Please note that this is a universal fitment gauge, and installation may vary depending on the vehicle.

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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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Fuel-It! - Corporate Logo
T#:26038542
Part#: BMW-EPI-950
Ships on Aug 7, 2026
$ 1,188.00 USD
Free Shipping on orders $49 and up

This kit is designed to enhance performance by adding six supplemental low-pressure fuel injectors, capable of supporting 1000+ WHP on E85 and similar high-performance fuels.

Crafted with precision, the manifold spacers are CNC machined and anodized to ensure durability and prolonged service life. Each kit comes complete with all necessary installation hardware, a gasket set, and a plug-and-play fuel line adapter for seamless integration.

The Elite kit stands out with its sleek black anodized finish and includes an additional return port, an upgraded fuel line, and enhanced machining to accommodate a wider range of applications, including the BMW S55 engine.

A port injection controller is not included. This is required for a complete installation.

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Fuel-It! - Corporate Logo
T#:25839000
Part#: BMW-N54-PRM-750
Ships on Aug 7, 2026
$ 988.00 USD
Free Shipping on orders $49 and up
Fuel-It! - Corporate Logo
T#:21275564
Part#: FFK-S55-NFI
Ships on Aug 7, 2026
$ 609.99 USD
Free Shipping on orders $49 and up
If you are running E85 or ethanol mixes in your BMW, you need this kit! This is a complete plug and play kit to install a Bluetooth ethanol sensor in your S55 BMW. This kit replaces the stock fuel lines from the fuel tank to the engine bay with an upgraded -6an E85 compatible fuel line and adds an ethanol sensor and Bluetooth analyzer to monitor your ethanol content. Includes both Bluetooth App & 5v analog output for JB4 or flash tuning. For your fuel line upgrade, choose the option that supports your current configuration. HPFP to the fuel tank: (Stock) This upgrade replaces both stock fuel lines with one upgraded continuous fuel line from the fuel tank to the HPFP and adds the ethanol sensor. Port Injection to the fuel tank: If you are running our port injection kit, this upgrade replaces the stock fuel lines from the tank to the engine bay, integrates the ethanol sensor and then utilizes a Y adapter to supply the HPFP and PI with fuel. Our custom fittings remove those tee's and extra fittings for a cleaner high flow setup. Non-Fuel-It! port injection to fuel tank: Choose this option if you are running a port injection kit that we did not manufacture or sell. This kit includes a longer 18" feedline from the Y to the port injection rail. You then cut the feed line to the length you need and install the included -6an female fitting or -6an female elbow to make the connection to your port injection rail. All of these kits utilize the BMS custom billet aluminum fittings to integrate with the stock fittings so no modifications are needed. *For the BMW F-series JB4 platform connect the white wire to position #16 on the JB4 25 pin harness. Select WMI Ethanol Setup option 1 to enable pin location 15/16 flex fuel input. *These kits are available for off-road use only *Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated your ethanol readings may be artificially elevated.
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Fuel-It! - Corporate Logo
T#:21275563
Part#: FFK-S55-FIP
Ships on Aug 7, 2026
$ 589.99 USD
Free Shipping on orders $49 and up
If you are running E85 or ethanol mixes in your BMW, you need this kit! This is a complete plug and play kit to install a Bluetooth ethanol sensor in your S55 BMW. This kit replaces the stock fuel lines from the fuel tank to the engine bay with an upgraded -6an E85 compatible fuel line and adds an ethanol sensor and Bluetooth analyzer to monitor your ethanol content. Includes both Bluetooth App & 5v analog output for JB4 or flash tuning. For your fuel line upgrade, choose the option that supports your current configuration. HPFP to the fuel tank: (Stock) This upgrade replaces both stock fuel lines with one upgraded continuous fuel line from the fuel tank to the HPFP and adds the ethanol sensor. Port Injection to the fuel tank: If you are running our port injection kit, this upgrade replaces the stock fuel lines from the tank to the engine bay, integrates the ethanol sensor and then utilizes a Y adapter to supply the HPFP and PI with fuel. Our custom fittings remove those tee's and extra fittings for a cleaner high flow setup. Non-Fuel-It! port injection to fuel tank: Choose this option if you are running a port injection kit that we did not manufacture or sell. This kit includes a longer 18" feedline from the Y to the port injection rail. You then cut the feed line to the length you need and install the included -6an female fitting or -6an female elbow to make the connection to your port injection rail. All of these kits utilize the BMS custom billet aluminum fittings to integrate with the stock fittings so no modifications are needed. *For the BMW F-series JB4 platform connect the white wire to position #16 on the JB4 25 pin harness. Select WMI Ethanol Setup option 1 to enable pin location 15/16 flex fuel input. *These kits are available for off-road use only *Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated your ethanol readings may be artificially elevated.
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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