BMW Fuel System Parts

Overflow Fuel Line

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T#:17704785

Part#: 13537799869

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05-03-2026

$ 99.99 USD

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Bav Auto Low Fuel Pressure Sensor - Multiple BMWs

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T#:639834

Part#: 13537614317

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$ 42.39 USD

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This low-pressure fuel sensor is commonly a cause of an "Increased Emissions" warning on the idrive and for check engine (SES) lights on BMW's with the N54 6 cylinder turbo engine or the S65 V8 engine in the M3. It will also fit a limited number of cars with the N55 engine. This sensor can be traced to a number of drivability issues, including cold start running problems, misfires, stumbling, hesitations, and overall rough running. You will likely have a code for the misfires, rich condition, or for the sensor itself. In some cases, the combination of codes can bring about a limp mode. Replacing this sensor is an easy and inexpensive first step if you're having any of these issues. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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High Pressure Fuel Injector

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T#:2104263

Part#: 13537528176

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$ 27.19 USD

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Direct replacement for high-pressure fuel injectors found on MINI R55, R56, R57, R58, R59, R60 and R61.

Control Unit Fuel Pump - Priced Each

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This part must be coded to your vehicle

T#:19560854

Part#: 16147229173

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Sale - Save 20% $ 224.99

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05-03-2026

$ 179.99 USD

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B58 Supra Fuel Pump Retrofit Extension Harness - F3X B58

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T#:2810078

Part#: B58PUMPHARNESS

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$ 45.00 USD

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$ 45.00 USD

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Use this harness to run an improved "Supra" fuel pump in your B58 car. This harness allows you to run the G20 M340i/Supra Fuel pump (13518631642) on your F Chassis B58 car.

MINI R52 R53 JCW Fuel Injector - Priced Each

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T#:2104261

Part#: 13537574132

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09-08-2026

$ 62.99 USD

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Bav Auto High Pressure Fuel Pressure Sensor - BMW N54 N63 S63 ...

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T#:639835

Part#: 13537537319

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$ 65.44 USD

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Located at the rear of the high-pressure fuel rail, this pressure sensor relays fuel pressure information to the vehicle's DME/ECS and is a common source of fault codes. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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NRW Designs E9X M3 S65 Inline Fuel Filter Kit - Gasoline Spec Aeromot...

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T#:40951290

Part#: S65PFF

Ships in 4 Business Days

$ 310.00 USD

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$ 310.00 USD

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Perfect for preventative maintenance or performance upgrades, the E9X M3 S65 Inline Fuel Filter Kit - Gas Paper Filter is a smart addition to any BMW M3 owner's toolkit.

G8X S58 Flex Fuel Kit

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T#:8061332

Part#: S58FLEXFKIT

Ships on Nov 12, 2026

$ 479.00 USD

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$ 479.00 USD

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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! Low Pressure Fuel Pump Upgrade Stage 3 - N54/55 E-Series ...

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T#:403279

Part#: FILPFPK3

Back Ordered

Starting at $ 1,155.83 USD

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Starting at $ 1,155.83 USD

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This is a complete Low-Pressure Fuel Pump (LPFP) upgrade that replaces your stock LPFP assembly with a new E85 certified one. This solution provides up to 300% more flow than stock and this assembly can be purchased one of three ways to meet your needs. Trade-in: (Domestic and Canada) This option allows you to receive a rebuilt/upgraded stock bucket with two new Walbro 450 pumps, filters, and fittings to swap out your stock LPFP assembly and requires a $150 *core deposit. Trade-in: (Euro) This option allows you to receive a rebuilt/upgraded stock bucket with two new Walbro 450 pumps, filters, and fittings to swap out your stock LPFP assembly and requires a $300 *core deposit. New Build: This option includes a new VDO LPFP bucket that is upgraded with new Walbro 450 pumps, filters, and fittings. No core deposit required but is eligible for a core refund of $50 should you elect to return your *stock bucket. (US Spec only) All three options include the following: A complete plug and play solution by simply replacing your stock bucket. However, to utilize the secondary, an additional wiring harness must be installed. Two new E85 compatible Walbro 450 pumps Two new Walbro filters A custom fitting that is tuned to optimize the venturi and pump output Spare vent tube clip Wiring harness for the secondary Flow testing prior to shipping

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Fuel-It! B58 BMW High Pressure Fuel Pump (HPFP) Upgrade - Stage 1 ...

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T#:17106920

Part#: BMW-B58HPFP-A01

Ships on Nov 12, 2026

$ 1,499.00 USD

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$ 1,499.00 USD

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Introducing the new B58 BMW HPFP upgrade kit from Fuel-It! Replaces your factory high-pressure fuel pump with a higher capacity pump capable of supporting 30% more flow with Stage1 or 60% more flow with Stage2! Includes all required installation hardware for a clean plug and play install. Includes: Upgraded High-Pressure Fuel Pump (HPFP) Billet Adapter Plate Billet Center Alignment Tool Low-pressure Line (Triple lined crimped fittings PTFE/SS/Nylon Braided) Custom Harness and Hardware

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Fuel-It! FLEX FUEL KIT For S58 BMW X3M & X4M - Complete Kit With Blue...

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T#:15976528

Part#: S58X3MFFK-BTECA

Ships in 3 Business Days

$ 479.99 USD

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$ 479.99 USD

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This is a complete plug-and-play kit to install a Bluetooth ethanol sensor in your X3M or X4M in about 30 minutes. The kit includes the following: New 5/16" E85 compatible fuel lines for your engine bay Genuine Continental ethanol sensor Fuel-It! Bluetooth Universal Analyzer (view E85 mix via Fuel-It! app) OR CANflex ECA (no Fuel-It! app support without the Bluetooth ECA), view E85 mix via JB4 or flash logging) Plug-and-play harness Includes both Bluetooth App & 5v analog output for JB4 or flash tunin This kit is compatible with the following 2020+ BMW X3M / X3M Competition 2020+ BMW X4M / X4M Competition *For the BMW S58 JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI page option 2/3 input to enable. *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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POR15 Absolute Coatings Fuel Tank Sealer

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T#:1575841

Part#: POR49216

Ships in 7 Business Days

$ 40.99 USD

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$ 40.99 USD

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POR-15 Fuel Tank Sealer was formulated and developed in our own laboratories due to the demand for a high-tech sealer impervious to all fuels, including the new Stage II fuels which have a high alcohol content.

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Fuel-It! F-Chassis B58 Stage 3 LPFP Upgrade

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T#:17837993

Part#: B58STG3LPFP

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$ 829.99 USD

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$ 829.99 USD

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This is a complete Low Pressure Fuel Pump (LPFP) upgrade for those customers that need the additional capacity to meet their power goals on pump gas, race gas, or E85. It utilizes a stock pump for the primary pump so that your EKP operates as intended by the factory eliminating potential errors for current draw and the secondary pump then runs under high boost only. For power levels up to 700whp we'd recommend using the standard 450 pump and beyond 700whp we'd recommend upgrading to the 525 pump. F-Series B58 (Gen 1) Stage 3 assemblies include: New stock LPFP Secondary pump assembly Secondary wiring harness Walbro filter Walbro 450 pump (F90000274) Compatible with the following vehicle production dates: 1' F20 LCI (05/2014 — 06/2019) 1' F21 LCI (05/2014 — 06/2019) 2' F22 (06/2014 — 06/2017) 2' F22 LCI (09/2016 — 12/2019) 2' F23 (06/2014 — 06/2017) 2' F23 LCI (09/2016 — 12/2019) 3' F30 LCI (09/2014 — 10/2018) 3' F31 LCI (09/2014 — 06/2019) 3' F34 GT LCI (09/2015 — 12/2019) 4' F32 (04/2015 — 02/2017) 4' F32 LCI (05/2016 — 12/2019) 4' F33 (03/2015 — 02/2017) 4' F33 LCI (05/2016 — 12/2019) 4' F36 Gran Coupé (05/2014 — 03/2017) 4' F36 Gran Coupé LCI (05/2016 — 12/2019) *Note: Secondary pump can NOT run full time. We recommend using a Hobb's switch to trigger the secondary under high boost. See the installation process here: https://www.youtube.com/watch?v=YoPf0F7PBt8

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NRW Designs E9X M3 S65 Inline Fuel Filter Kit (E85 Micro Glass Filter...

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T#:42403021

Part#: S65EFF

Ships in 4 Business Days

$ 329.99 USD

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$ 329.99 USD

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The go-to choice for BMW enthusiasts looking to enhance fuel system reliability and performance while supporting ethanol-based fuels.

Fuel-It! 650HP S65 E9X BMW M3 LPFP Upgrade - w/ 4PSI Hobbs Switch ...

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T#:18202901

Part#: FIS65M3LPFP

Back Ordered

$ 514.00 USD

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$ 514.00 USD

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As these cars get older we're seeing more issues with the stock components and more demand for cost-conscious fueling solutions. The new Fuel-It 650HP line of fuel system upgrades are designed with those needs in mind while maintaining a budget. They make the most of the stock components to maintain stock reliability and drive-ability but when the boost gets cranked up, the Fuel-it 650HP components kick in to support the additional fueling needs of your high horsepower car. With the Fuel-It 650HP lineup, you can upgrade your components all at one time or upgrade them as time and budget allows. If upgrading one component at a time, we'd recommend starting with the LPFP first as that is the heart of your fuel system, without a good Low Pressure Fuel pump (LPFP) you can't supply the fuel needed to any of your other components. Your secondary pump can NOT run full time, it must only be run under boost only. Running it full time will place additional strain on the stock system, will lead to high fuel temps, and pump or component failure. To turn the secondary pump on under boost we recommend running the included 4psi Hobb's switch. Included with all S65 LPFP upgrades: Walbro 450 pump (F90000274) Black Anodized Custom fitting Pump brackets 9/64" terminals and associated hardware Fuel line Replacement PITA clip Wiring harness

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Stage 2 LPFP Upgrade & Lock-Ring Removal Tool - G-Chassis B58 B46 ...

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T#:25075820

Part#: BX8LPFPS2LRRT

Ships in 8 Business Days

$ 619.00 USD

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$ 619.00 USD

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Finally, a quality low-pressure fuel system upgrade worthy of installing in your B58-equipped G-Chassis BMW! This drop-in bucket assembly replaces the factory fuel-sending unit, supports ethanol fuel and up to 700 wheel horsepower!

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Injector Seal

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T#:15015295

Part#: 13537591006

In Stock

$ 4.39 USD

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$ 4.39 USD

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Replace your injector o-rings when replacing your injectors or any sort of rebuild or refresh.

BMW N54 N63 N74 Injector Seal - Priced Each

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T#:6460319

Part#: 13537584315

In Stock

$ 3.85 USD

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$ 3.85 USD

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BMW N54 N63 N74 Injector Seal is a crucial component for maintaining the performance and efficiency of your BMW's fuel injection system. This high-quality seal, located at the end of the injector, ensures a tight fit, preventing fuel leaks and maintaining optimal engine operation. Each seal is sold individually, with one required per injector, making it an essential part of any injector maintenance or replacement.

Precision Fit: Specifically designed for BMW N54, N63, and N74 engines.
Prevents Fuel Leaks: Ensures a secure seal at the injector tip.
Maintains Engine Efficiency: Helps maintain optimal engine performance by preventing air and fuel leaks.
High-Quality Material: Made from durable materials for long-lasting performance.
Easy Replacement: Direct fitment for hassle-free installation.

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Fuel-It! Flex Fuel Kit - N54/N55 E Chassis

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T#:21242695

Part#: FFK-N5XA

In Stock

Sale - Save 4% $ 485.99

This product was last offered at the strikethrough price on
09-20-2026

Starting at $ 464.99 USD

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Sale - Save 4%

$ 485.99

This product was last offered at the strikethrough price on
09-20-2026

Starting at $ 464.99 USD

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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 E-Chassis 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 N54 E-series JB4 platform connect the white wire to position #15 on the JB4 25 pin harness. Select WMI Ethanol Setup option 1 to enable pin location 15/16 flex fuel input. *For the BMW N55 E-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. *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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Elring Fuel Injector O-Ring - M54 M52 (09/1998+)

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T#:362419

Part#: 13641437486

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$ 3.08 USD

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$ 3.08 USD

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The O ring that is located on the engine side of the injector. Best to replace whenever removing the fuel injectors for any reason.
If you drive a European vehicle, chances are high your vehicle came equipped with one or more Victor Reinz gaskets. Choose OE quality VR gaskets and seals and do the job right the first time.

Measurements: 9.2x2.8

If you drive a European vehicle, chances are high your vehicle came equipped with one or more Elring gaskets. Choose OE quality gaskets and seals and do the job right the first time.

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O-Ring 2,8x1,5 FPM SH70

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T#:15081503

Part#: 13537794553

In Stock

$ 2.99 USD

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$ 2.99 USD

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Replace your Injector o-rings whenever you change your injectors!

Fuel Injector Gasket Ring - BMW N47, N57, M57, B57

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T#:17871160

Part#: 13532247156

Ships on Dec 2, 2026

$ 0.99 USD

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$ 0.99 USD

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Seals the fuel injector to the engine

Fuel-It! Flex Fuel Kit - N20/N26 F Chassis

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T#:21275574

Part#: FFK-N20/6F-FK

Ships on Nov 12, 2026

$ 369.99 USD

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$ 369.99 USD

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This is a complete plug and play kit to install a Bluetooth ethanol sensor in about 30 minutes! The kit includes the following: New 5/16" E85 compatible fuel lines for your engine bay Genuine Continental ethanol sensor Fuel-It! Bluetooth analyzer Plug and play harness Includes both Bluetooth App & 5v analog output for JB4 or flash tuning NOTICE: If you have an N26 motor type, you will need to retrofit the HPFP supply line to part number 13537585415 to be compatible with this kit. *For the BMW F-series JB4 platform connect the white wire to position #14 on the JB4 25 pin harness. Select WMI Ethanol Setup option 1 to enable pin location 14/15/16 flex fuel input. *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! Flex Fuel Kit - N54/N55 5 Series

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T#:21242701

Part#: FFK-N5XB

In Stock

Sale - Save 4% $ 485.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 464.99 USD

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Sale - Save 4%

$ 485.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 464.99 USD

Add to Wish List

This is a complete plug and play kit to install a Bluetooth ethanol sensor in your E-Series BMW. (Check compatibility for your platform below) This kit replaces the stock fuel lines from the fuel tank to the engine bay with an upgrade -6an E85 compatible fuel line and adds an ethanol sensor and Bluetooth analyzer to monitor your ethanol content. This kit features a 0-5 volt analog output that integrates with the JB4, analog gauge, or any other ECU or tuner that supports 0-5 volt input. All of these kits utilize a custom billet aluminum fittings to integrate with the stock fittings so no modifications are needed. 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. *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. *For the BMW N54 E-series JB4 platform connect the white wire to position #15 on the JB4 25 pin harness. Select WMI Ethanol Setup option 1 to enable pin location 15/16 flex fuel input. *For the BMW N55 E-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. *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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Elring Fuel Injector O-Ring - N52 3.0L

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T#:362791

Part#: 13647531313

In Stock

$ 2.03 USD

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$ 2.03 USD

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These o-rings need to be replaced any time that the fuel injectors are pulled. These have a habit of swelling and can tear or suffer other damage when being reinstalled or when removed. If the seal is not tight, this could lead to a fuel leak or worse.This Elring o-ring will ensure the seal is nice and tight

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW engines:
N52 3.0L

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Port Injection Kit

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T#:25839000

Part#: BMW-N54-PRM-750

Ships on Nov 12, 2026

$ 988.00 USD

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$ 988.00 USD

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BMW Port Injection Kit - B58 2015+

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T#:38890887

Part#: BMS-PIK-B58

Ships on Nov 12, 2026

$ 699.00 USD

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$ 699.00 USD

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The Fuel-It! Port Injection Manifold Spacers are precisely CNC-machined for a seamless, factory-like fit and anodized black for enhanced durability and a sleek appearance. This port injection kit includes all necessary installation hardware, heavy-duty gaskets, and a plug-and-play BMS braided fuel line adapter. To complete the kit, you'll need the Fuel Line, Fuel Injectors, and a Port Injection Controller, which are available separately or can be added to your package. An aftermarket charge pipe is required to accommodate the additional height of the manifold. For Gen 1 B58, we recommend the BMS Elite Aluminum Replacement Charge Pipe Upgrade, while for Gen 2 B58, options include the BMS Elite BMW/Supra B58TU Gen2 Charge Pipe Blow-Off Valve (BOV) Kit or the BMS Elite BMW/Supra B58TU Gen2 Charge Pipe.

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Fuel-It! Flex Fuel Kit - G2x/G3x/G4x B58

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T#:21209864

Part#: GB58BFFK

Ships on Nov 12, 2026

$ 479.99 USD

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$ 479.99 USD

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The complete kit with Bluetooth ECA includes the following: Genuine Continental® ethanol sensor Two stainless steel braided fuel lines with black nylon sheathing to protect your other engine bay components Fuel-It! Bluetooth analyzer (iPhone or Android app must be downloaded to use this kit) Plug and play harness Includes both Bluetooth App & 5v analog output for JB4 or flash tuning *For the BMW G-series JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI Ethanol Setup option 0 to enable pin location 2/3/4 flex fuel input. *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! Bluetooth FLEX FUEL KIT For The S63TU 2012-2016 F10 BMW M5 &...

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T#:16840517

Part#: FFKS63TUFXM

Ships on Nov 12, 2026

$ 479.99 USD

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$ 479.99 USD

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Know your exact ethanol content in real-time via the Fuel-it! or JB4 app on your smartphone or tablet. The kit includes the following: Genuine Continental® ethanol sensor 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 Fuel-It! Bluetooth analyzer (iPhone or Android app must be purchased to use this kit) Plug and play harness Includes both Bluetooth App & 5v analog output for JB4 or flash tuning Bluetooth (iPhone or Android app must be downloaded to use this feature) *For the BMW F-series JB4 platform connect the white wire to position #16 on the JB4 25 pin harness. Select WMI page bit 1 to enable. *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! Elite Port Injection Kit With 950cc Injectors & Fuel Line ...

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T#:26038542

Part#: BMW-EPI-950

Ships on Nov 12, 2026

$ 1,188.00 USD

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$ 1,188.00 USD

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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! Flex Fuel Kit - F-Chassis S55 - Non BMS/FI PI

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T#:21275564

Part#: FFK-S55-NFI

Ships on Nov 12, 2026

$ 609.99 USD

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$ 609.99 USD

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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! Bluetooth Flex Fuel Kit - B46/B48/B58

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T#:21209854

Part#: FFK-B464858

Ships on Nov 11, 2026

Starting at $ 479.99 USD

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Starting at $ 479.99 USD

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If you're running E85 or ethanol mixes in your BMW, you need this kit! As many of you know the BMW motors can be very picky about how much ethanol you run to achieve peak performance but not run lean. Consequently, BMS have put together a kit enabling you to easily install an ethanol sensor with no permanent modifications needed. You will simply remove your low pressure fuel line in the engine bay and plug in our kit. It's a complete plug and play solution that utilizes our Bluetooth app to monitor your ethanol content. When you are ready to return to stock, you will simply remove the kit and re-install the stock fuel line. 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 Bluetooth Model Supports stand-alone Bluetooth operation with the Fuel-It! app *For the JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI Ethanol Setup option 0 to enable pin location 2/3/4 flex fuel input. *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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A90 MKV B58 Supra Fuel-It! Flex Fuel Kit

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T#:21275577

Part#: FFK-B58S-FK

Ships on Nov 12, 2026

$ 479.99 USD

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$ 479.99 USD

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A90 MKV B58 Supra Fuel-It! Flex Fuel Kit is the ultimate upgrade for monitoring and managing your Toyota Supra’s ethanol content in real-time. This complete kit, offered by Turner Motorsport, allows you to know your exact ethanol content through the Fuel-It! or JB4 mobile app on your smartphone or tablet. It’s perfect for those looking to maximize performance by running ethanol blends, providing you with precise data to make informed decisions.

This kit includes everything you need for installation, featuring a genuine Continental® ethanol sensor, stainless steel braided fuel lines with black nylon sheathing, a Fuel-It! Bluetooth analyzer, and a plug-and-play harness. It also supports both Bluetooth App and 5v analog output for JB4 or flash tuning.

Real-Time Monitoring: Instantly view ethanol content on your smartphone or tablet via the Fuel-It! or JB4 app.
Comprehensive Kit: Includes a genuine Continental® ethanol sensor, Fuel-It! Bluetooth analyzer, and more.
Durable Construction: Stainless steel braided fuel lines with black nylon sheathing protect engine bay components.
Plug-and-Play Installation: Simplified installation with a plug-and-play harness.
Bluetooth and Analog Output: Supports both Bluetooth connectivity and 5v analog output for JB4 or flash tuning.
Optimized Performance: Perfect for those looking to maximize power by running ethanol blends.

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Fuel-It! Flex Fuel Kit - F-Chassis S55 - BMS/FI PI

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T#:21275563

Part#: FFK-S55-FIP

Ships on Nov 12, 2026

$ 589.99 USD

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$ 589.99 USD

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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! Flex Fuel Kit - B58 G29 Z4

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T#:21275568

Part#: FFK-G29Z4-CK

Ships on Nov 12, 2026

$ 479.99 USD

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$ 479.99 USD

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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 B58 powered G29 Z4. 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. All of these kits utilize the BMS custom billet aluminum fittings to integrate with the stock fittings so no modifications are needed. For the G29 Z4 JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI Ethanol Setup option 0 to enable pin location 2/3/4 flex fuel input. *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! Flex Fuel Kit - B58 G05

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T#:21275576

Part#: FFK-B58X-FK

Ships on Nov 12, 2026

$ 349.99 USD

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$ 349.99 USD

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Know your exact ethanol content in real-time via the Fuel-It! or JB4 mobile app on your smartphone or tablet. The complete kit includes the following: Genuine Continental ethanol sensor Fuel-It! Bluetooth Universal Analyzer One stainless steel braided fuel line with black nylon sheathing to protect your other engine bay components Proprietary custom billet fitting for plug and play OEM integration One custom wiring harness 1 tube of SuperLube® for hose adapter install Bluetooth Model Supports stand-alone Bluetooth operation with the Fuel-It! app *For the G-series JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI Ethanol Setup option 0 to enable pin location 2/3/4 flex fuel input. *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 Pressure Regulator

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T#:54388499

Part#: 13531743378

Ships in 2 Business Days

$ 82.99 USD

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$ 82.99 USD

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Engineered to strict tolerances, this replacement regulator ensures consistent, factory-calibrated fuel pressure to optimize injector duty cycles and restore lost performance.

Fuel-It! B58 BMW High Pressure Fuel Pump (HPFP) Upgrade - Stage 2 ...

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T#:13003684

Part#: BMWB58HPFPSTG2

Ships on Nov 12, 2026

$ 1,499.00 USD

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$ 1,499.00 USD

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Introducing the new B58 BMW HPFP upgrade kit from Fuel-It! Replaces your factory high-pressure fuel pump with a higher capacity pump capable of supporting 30% more flow with Stage1 or 60% more flow with Stage2! Includes all required installation hardware for a clean plug and play install. Includes: Upgraded High-Pressure Fuel Pump (HPFP) Billet Adapter Plate Billet Center Alignment Tool Low-pressure Line (Triple lined crimped fittings PTFE/SS/Nylon Braided) Custom Harness and Hardware

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Bav Auto Fuel Pressure Sensor - M57 3.0L

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T#:639823

Part#: 13627792260

Special Order: No Guaranteed ETA

Sale - Save 10% $ 49.99

This product was last offered at the strikethrough price on
05-03-2026

$ 44.99 USD

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Sale - Save 10%

$ 49.99

This product was last offered at the strikethrough price on
05-03-2026

$ 44.99 USD

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This sensor measures fuel pressure and is located on the intake manifold of your diesel BMW. If it has failed, replace it with this part to restore fuel system performance. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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