2003 BMW 5-Series Performance Fuel Systems

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    • (0 reviews)
      # 1080187339
      BMW 5-Series 2003, OEM In-Line Fuel Catalyst by Fitch® Fuel Catalyst. Get improved performance and reduced emissions with the Fitch Fuel Catalyst! Unlike expensive additives that must be continually replenished, you purchase this...
      Increases fuel economyIncreases horsepower and torque for improved performance
      $215.55 - $271.65
    • (0 reviews)
      # 745704900
      BMW 540i 2003, ID1700 Fuel Injector by Injector Dynamics®. The ID1700 is the most recent offering from the partnership of Injector Dynamics and Bosch Motorsport. The ID1700 was designed to fill the gap between the ID1300 and the ID2000,...
      High quality at an affordable priceExpertly made from premium materials
      $250.00 - $2,000.00
    • (0 reviews)
      # 745705917
      BMW 540i 2003, ID1050 Fuel Injector Set by Injector Dynamics®. The ID1050x is the evolution of the ID1000, and the latest addition to the X-Series. It is the most recent offering from the partnership of Injector Dynamics and Bosch...
      Corrosion resistant internals make it compatible with all known fuels, capable of extended service life with corrosive fuelsCompact body allows fitment in 200+ applications, including current and future engines utilizing short body injectors
      $130.00 - $1,040.00
    • (0 reviews)
      # 98663347
      BMW 540i 2003, ID1300 Fuel Injector by Injector Dynamics®. The ID1300 is an all new injector, designed in partnership with Bosch Motorsport. This collaboration has given us the ability to design a high flow injector with characteristics...
      High quality at an affordable priceExpertly made from premium materials
      $225.00 - $1,800.00
    • (0 reviews)
      # 98663350
      BMW 540i 2003, ID2000 Fuel Injector by Injector Dynamics®. The ID2000 has set the standard for linearity and control in a large injector. Flowing in excess of 2000cc/min at 3 bar, the ID2000 will also provide a smooth stoichiometric...
      High quality at an affordable priceExpertly made from premium materials
      $240.00 - $1,920.00
    • (0 reviews)
      # 1079998504
      BMW M5 2003, Direct Fit Nitrous Nozzle System by Nitrous Express®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...
      High quality at an affordable priceExpertly made from premium materials
      $788.30 - $1,516.28
    • (0 reviews)
      # 1078991086
      BMW M5 2003, Direct Fit Nitrous Nozzle System by Nitrous Express®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...
      High quality at an affordable priceExpertly made from premium materials
      $788.30 - $1,516.28
    • (0 reviews)
      # mpn4476942125
      BMW 540i / M5 2003, Drive by Wire Wet Nitrous Kit by NOS®. A great complement to NOS's cutting-edge nitrous kits, the 05134NOS is great for vehicles where anNOS application-specific kit is not available. Designed to work on sequential...
      Exclusive NOS "Soft-Plume" Fogger nozzle finely atomizes the fuel for superior nitrous and fuel distributionIncludes the world-famous NOS 10 lb "blue bottle"
      $855.95
    • (0 reviews)
      # mpn263004435
      BMW 525i / 540i Automatic Transmission With Electronic Traction Control 2003, Sprint Booster Power Converter by aFe®. Automobiles in the 21st century have replaced the more conventional throttle cable technology for an ECM (Electronic...
      3 Acceleration modes36 Acceleration programs (18 manual and 18 auto)
      $289.99
    • (0 reviews)
      # mpn4495465664
      BMW 520d / 520i / 525d / 525i / 530d / 530i / 535i / 540i / 545i / M5 2003, Throttle Responder by Remus®. The REMUS Responder improves throttle response by means of modifying the accelerator pedal output signal. No more throttle delay...
      Improved throttle response, reduced lag during gear changesQuicker reaction times, more dynamic without changing engine parameters
      $249.00
    • (0 reviews)
      # mpn664016
      BMW 540i 2003, Silver Bullet Throttle Body Spacer by aFe®. What is inexpensive, takes only a few minutes to install, and results in more power and improved throttle response? The aFe Silver Bullet! The Silver Bullet Throttle Body Spacer...
      Improves performanceImproves fuel economy
      $189.05
    • (0 reviews)
      # mpn2894295534
      Universal Gas Treatment with Octane Boost by RBP®. Volume: 16 oz. Treats 500 Gallons. This additive Compensates for the variances in quality of different fuels (including biodiesel) and the deficiencies of today’s Ultra Low Sulfur...
      Total Fuel System CleanerLubricity Enhancer
      $34.50
    • (0 reviews)
      # mpn2894295936
      Universal High Performance Diesel Fuel Additive Enhancer with Cetane by RBP®. Volume: 16 oz. Treats 500 Gallons. This additive Compensates for the variances in quality of different fuels (including biodiesel) and the deficiencies of...
      Total Fuel System CleanerLubricity Enhancer
      $29.50
    • (0 reviews)
      # mpn2894295535
      Universal Professional Grade by RBP®. Volume: 16 oz. Treats 250 Gallons. Completely eliminates water. This additive Compensates for the variances in quality of different fuels (including biodiesel) and the deficiencies of today’s...
      Total Fuel System CleanerLubricity Enhancer
      $34.50
    • (2 reviews)
      # mpn4478515330
      Universal Boost Juice by Snow Performance®. Comes in case of 1 gal. Get the most from your water-methanol injection kit with Boost Juice! Boost Juice is a proprietary mix of 49% methanol and 51% distilled water. Manufactured in the...
      Proprietary mix of 49% methanol and 51% distilled waterHigh quality, made in controlled environment
      $29.99
    • (0 reviews)
      # mpn4478515329
      Universal Nitro Booster by Snow Performance®.
      High quality, made in controlled environmentIncreases kit durability
      $35.99
    • (0 reviews)
      # mpn359115879
      Universal Alcohol Fuel Lube 16 oz by Pro-Blend®. The absolute finest. For all alcohol buring (methanol) engines. Eliminates chalking, powering, etching, line clogging and frequent pump failure. Guaranteed. Makes the use of alcohol a...
      For keeping your vehicle run more efficientlyDesigned to help prolong your vehicle parts’ life
      $21.88
    • (0 reviews)
      # 97686000
      Universal Fuel Stabilizer by Champion Brands®. CHAMPION BRANDS FUEL STABILIZER is a concentrated formula designed for all 2 & 4 cycle engines. Keeps gasoline and diesel fuel fresh during storage and prevents corrosion and varnish build-up.
      Made with precision and quality in mindBuilt to last
      $5.25 - $63.00
    • (0 reviews)
      # 106308816
      Universal Octane Treatment by Champion Brands®. CHAMPION OCTANE TREATMENT is formulated to reduce the need for higheroctane fuels. Great fuel stabilizer, and compatible with all gasoline additives. Oxygen sensor safe as well.
      Made with precision and quality in mindBuilt to last
      $3.99 - $34.32
    • (0 reviews)
      # 97685845
      Universal eGuard Ethanol Fuel Treatment by Champion Brands®. Ethanol Treatment. CHAMPION BRANDS ETHANOL FUEL TREATMENT has benefits that include the stabilization offuel and removal of water. Ethanol Treatment also offers reduced gum...
      Made with precision and quality in mindBuilt to last
      $6.99 - $90.60
    • (0 reviews)
      # mpn126543501
      Universal 1-Tank Power Renew by CRC®. 16 oz. A concentrated one-tank cleanup that delivers a powerful SHOCK to your dirty fuel system. Made with the maximum available chemistry it's the most powerful fuel system cleaner on the market....
      A concentrated one-tank cleanup that delivers a powerful SHOCK to your dirty fuel systemMade with the maximum available chemistry it's the most powerful fuel system cleaner on the market
      $12.05
    • (0 reviews)
      # mpn126543500
      Universal Diesel Dry™ Water Remover by CRC®. 12 oz. Effectively dissipates and removes large amounts of water in diesel fuel to minimize smoke and improve fuel economy. For pre-existing or preventive maintenance in diesel fuel.
      Prevents Sludge SedimentEliminates Water
      $5.25
    • (0 reviews)
      # mpn126543552
      Universal EnginKool™ Marine Fuel Stabilizer by CRC®. 30 oz. Prevents loss of heat conductivity to cooling system fluids, which causes overheating. Transfers heat from metal to coolant to reduce engine temperatures. Compatible with all...
      Prevents loss of heat conductivity to cooling system fluids, which causes overheatingTransfers heat from metal to coolant to reduce engine temperatures
      $4.59
    • (0 reviews)
      # mpn126543495
      Universal Diesel Fuel Conditioner with Anti Gel by CRC®. 30 oz. This emissions reducing formula is rated "SUPERIOR" in Cummins L-10 Test for injector cleanliness. Lowers pour point and CFPP, reliquefies gelled fuel, adds lubricity,...
      Emissions reducing formula is rated "SUPERIOR" in Cummins L-10 Test for injector cleanlinessLowers pour point & CFPP, reliquefies gelled fuel, adds lubricity, increases power and MPG
      $7.79
    • (0 reviews)
      # mpn126543490
      Universal Isopropyl Antifreeze for Gas Tanks by CRC®. 12 oz. CRC® Isopropanol based formula that removes water from gasoline. Prevents fuel line freeze while protecting and cleaning the fuel system year round. Protects down to -50F....
      Isopropanol based formula that removes water from gasolinePrevents fuel line freeze while protecting & cleaning the fuel system year round
      $6.34
    • (0 reviews)
      # mpn1589794539
      Universal Jump Start Fluid with Lube by CRC®. 11 oz. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $3.30
    • (0 reviews)
      # 46063559
      Universal Phaseguard4™ Ethanol Fuel Treatment by CRC®. Protects all gas powered 2 and 4 cycle engines from the harmful effects of ethanol. Prevents phase separation, protects against corrosion, cleans the fuel system, stabilizes fuel...
      Maximum Corrosion ProtectionStabilizes Fuel in Use and in Storage
      $5.73 - $11.16
    • (0 reviews)
      # mpn126543546
      Universal Phaseguard4™ Stor & Go™ Protectant by CRC®. 1 oz, 50 Pieces. The maximum protection available to prevent harmful phase separation of fuel that can lead to equipment failure. Protects tools and equipment from damage caused...
      The maximum protection available to prevent harmful phase separation of fuel that can lead to equipment failureProtects tools and equipment from damage caused by ethanol fuel, cleans fuel system components, stabilizes fuel and restores power
      $85.57
    • (0 reviews)
      # mpn126488451
      Universal Gas Line Antifreeze by HEET®. 12 oz. Heet® aids in quick cold weather starts while preventing frozen fuel lines. Removes water and condensation from fuel system. Safe for fuel injected and carbureted engines with unleaded and...
      No.1 selling brand of gas-line antifreeze and water removerSafe for use in all 4-cycle engines including fuel injected engines
      $2.14
    • (1 review)
      # 47636926
      Universal Fuel Stabilizer by Lucas Oil®. A better solution to prevent gasoline break-down during storage. Safe to use in all grades of gasoline and in all 2 and 4 cycle engines. Easy to use! Application rate, 1oz. to treat 1 gallon.
      A better solution to prevent gasoline break-down during storageSafe to use in all grades of gasoline and in all 2 and 4 cycle engines
      $4.47 - $8.81
    • (1 review)
      # 47636933
      Universal Fuel Treatment by Lucas Oil®. Lucas Fuel Treatment is formulated for both gasoline and diesel engines, carbureted or fuel injected. It gives your fuel system what it really needs - a blend of super slick oils and additives...
      A great tune-up in a bottleCleans and lubricates the fuel system
      $4.30 - $28.68
    • (1 review)
      # 47637000
      Universal Octane Booster by Lucas Oil®. Lucas Motorcycle Octane Booster - A Real Octane Booster! Tested and proven to deliver three times more boost than most other brands. Lucas Motorcycle Octane Booster is a GENUINE Performance...
      Safe for turbos, oxygen sensors and catalytic convertersSuitable for use in fuel injected and carbureted engines
      $2.45 - $7.56
    • (1 review)
      # 47636880
      Universal Ethanol Fuel Conditioner by Lucas Oil®. Lucas Ethanol Fuel Conditioner with Stabilizers was developed to specifically address issues associated with using ethanol based fuels. This applies to E-10, E-15, E-85, pure ethanol and...
      Cleans injectors, valve seats, combustion chambers and other critical fuel componentsStabilizes fuel and prevents varnish & gum formation in ethanol and gasoline
      $6.95 - $7.82
    • (0 reviews)
      # mpn126712132
      Universal 0-60™ Octane Booster by Prestone®. 16 oz. A super-concentrated street-legal fuel additive that contains MMT and will raise octane in regular unleaded gasoline by up to 10 points. One point is equal to 0.1 octane number...
      This street-legal formulation delivers the highest amount of MMT octane booster allowed by lawWill raise octane in regular unleaded gasoline by up to 10 points
      $8.07
    • (1 review)
      # 97687335
      Universal Fuel System Revitalizer by Start Your Engines!®. Revitalizes fuel systems and freshens stale gas. Ensures quick starting coming out of storage and throughout the season. For use in all small 2 and 4-cycle engines. Easy-to-use...
      Additive ensures quick easy starts after extended storage, and ensures smooth idling and performance in seasonFor all 2 and 4-cycle small engines
      $8.48 - $9.64
    • (0 reviews)
      # mpn6175676
      Universal Fuel Injector Treatment and Upper Cylinder Lubricant by STP®. 12 oz. This great product is right what the doctor ordered to restore the optimum operating condition of the fuel system. It saves gas, fights deposit buildup and...
      Helps restore optimum performanceMaintains engine efficiency
      $2.62
    • (0 reviews)
      # 97687378
      Universal Fuel Injector and Carburetor Treatment by STP®. This great product is right what the doctor ordered to restore the optimum operating condition of the fuel system. It saves gas, fights deposit buildup and maintains optimum...
      Helps restore optimum performanceMaintains engine efficiency
      $2.31 - $3.80
    • (0 reviews)
      # mpn6175667
      Universal Gas Treatment by STP®. 5.25 oz. This revolutionary treatment is a sure way to improve the quality of gas and keep fuel injectors and intake valves clean. Powerful cleaning agents help fight the accumulation of harmful carbon,...
      Helps restore optimum performanceMaintains engine efficiency
      $2.64
    • (0 reviews)
      # 106767106
      Universal Diesel Accelerator by Torco®. Torco Accelerator is not just another fuel additive, It's simply a RACE FUEL CONCENTRATE! With many of the same additives our winning race fuel possesses, Torco Accelerator is a blend of...
      Can raise the Octane of your fuel as high as 105You can customize your blend to fit your needs
      $19.15 - $114.88
    • (0 reviews)
      # 106767202
      Universal Unleaded Fuel Accelerator by Torco®. 32oz Torco Accelerator will lower the end burn temperature which will make your fuel burn more complete thus releasing all of the power that your engine has to offer. Efficiency equals...
      Can raise the Octane of your fuel as high as 105You can customize your blend to fit your needs
      $18.27 - $108.52
    • (1 review)
      # 73827148
      Universal Madditive™ Fuel Stabilizer Ethanol Shield by VP Racing Fuels®. Stability for the long road. Eliminates the problems caused by ethanol fuel while reducing heat and extending engine life. Fuel Stabilizer with Ethanol Shield...
      High quality at an affordable priceExpertly made from premium materials
      $9.86 - $88.74
    • (1 review)
      # mpn358502060
      Universal Madditive™ Octanium Fuel Booster 1 Quart, Case of 8 Bottles by VP Racing Fuels®. Case 8x1 Quart. Increase your numbers, Octane numbers. Octanium is blended for off-road racing applications and increases gasoline octane up to...
      High quality at an affordable priceExpertly made from premium materials
      $158.08
    • (0 reviews)
      # mpn469957037
      Universal Rev-X Distance + Fuel Winter Additive 8 oz by Merchant Automotive®. The last thing anyone wants when running a diesel powered vehicle or diesel power equipment in cold weather is to get stranded or shut down due to gelled...
      High quality at an affordable priceExpertly made from premium materials
      $17.48
    • (0 reviews)
      # 206753099
      Universal Stanadyne Performance Formula by Merchant Automotive®. Add Stanadyne Additives to tank before filling with diesel fuel to ensure thorough mixing. Tighten bottle cap securely after use and store upright. Store above 32°F...
      Each Pint Treats up to 60 Gallons of Diesel FuelPrevents Fuel Gelling
      $10.46 - $99.85
    • (0 reviews)
      # mpn1626600405
      Universal Diesel and Biofuel Professional PEA Concentrate by Archoil®. 16 oz / 473ml bottle. For Diesel and Biofuel Blended Diesel. AR6400-D is a fuel additive blended from the latest high-strength polyetheramines and PIBSA/PIBSI...
      Cleans harmful deposits and prevents future accumulationRestores fuel efficiency
      $19.95
    • (0 reviews)
      # mpn1626600404
      Universal Gas and Ethanol Professional PEA Concentrate by Archoil®. 16 oz / 473ml bottle. For Gas and Ethanol Blended Gas. AR6400 is an advanced fuel additive blended from the latest high-strength polyetheramines and BIPSA/PIBSI...
      Cleans harmful deposits and prevents future accumulationRestores fuel efficiency
      $19.95
    • (0 reviews)
      # 84448078
      Universal High Concentrate Fuel Modification Complex by Archoil®. Bottle. Archoil’s AR6200 everyday fuel treatment contains a proven organometallic catalyst that reduces the temperature at which hydrocarbons start to burn. By lowering...
      Contains combustion catalyst that reduces temperature at which fuel starts to burn. Results in a more complete combustion process with less unburned hydrocarbon residue createdReduce emission
      $8.95 - $669.95
    • (0 reviews)
      # mpn4497724600
      BMW 540i 2003, Fuel Injection Throttle Body Assembly by VDO®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...
      Premium parts you can rely onDesigned to keep your system in top shape
      $193.02
    • (0 reviews)
      # mpn4511648954
      BMW 540i 2003, Port Injection Fuel Injector by Bosch®. Replace a defective fuel injector and get rid of poor fuel economy and sluggish performance. The fuel injector from Bosch is a cost-effective solution when you need a compatible...
      Optimal spray pattern for optimum mixture preparation and efficient combustion, also during dynamic driving behaviorReduced consumption and low emissions, particularly during the start and warm-up phase
      $58.47
    • (0 reviews)
      # mpn4511648741
      BMW 525i / 530i / 540i 2003, Fuel Pressure Regulator by Bosch®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...
      High quality at an affordable priceExpertly made from premium materials
      $26.53
    • (0 reviews)
      # mpn4495835238
      BMW M5 2003, Right Fuel Tank Sending Unit by Genuine®. If your fuel system parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain...
      Designed to restore your vehicle’s fuel delivery systemGenuine OE replacement parts from the OE manufacturer
      $317.49
    • (0 reviews)
      # mpn929374
      BMW 525i / 530i / 540i / M5 2003, Fuel Tank Sending Unit Gasket by URO Parts®. Swap out your worn out factory fuel part with this fuel component that offers the same quality and performance as the OE for less money. After installation,...
      Designed to replace your factory fuel partHelps to restore the proper operation of your fuel system
      $5.89
    • (0 reviews)
      # mpn4490973901
      BMW 540i 2003, Throttle Rod Bushing by URO Parts®. Location: Between cable and lever. Rubber grommet : 10mm. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...
      High quality at an affordable priceExpertly made from premium materials
      $2.90
    • (0 reviews)
      # mpn3633732287
      BMW 540i / M5 2003, Fuel Injector Clip by Genuine®. If your fuel system parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain...
      Designed to restore your vehicle’s fuel delivery systemGenuine OE replacement parts from the OE manufacturer
      $1.46
    • (0 reviews)
      # mpn3633733880
      BMW 525i / 530i 2003, Fuel Injector Holder by Genuine®. If your fuel system parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain...
      Designed to restore your vehicle’s fuel delivery systemGenuine OE replacement parts from the OE manufacturer
      $1.73
    • (0 reviews)
      # 105073546
      BMW 5-Series 2003, Fuel Injector Seal by Elring®. Is your vehicle hard to start? Does its stumble and stall, and idle rough? Are you making more frequent visits to the pump? Your fuel system may need repair, but before you waste your...
      High quality at an affordable priceExpertly made from premium materials
      $1.28 - $4.05
    • (0 reviews)
      # mpn4511649476
      BMW 525i / 530i / 540i / M5 2003, Fuel Pressure Regulator O-Ring by Bosch®. Size: 5mm x 1.5mm. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers...
      High quality at an affordable priceExpertly made from premium materials
      $1.39
    • (0 reviews)
      # mpn4495716604
      Universal Fuel System Booster by Lubegard®. Capacity: 16 oz. Fuel System Booster is a state-of-the-art new fuel additive made with the highest quality premium PEA and FLA technologies. It is the 1st product of its kind able to...
      Contains a unique, proprietary polyether amine (PEA) detergent technology, the most effective chemistry for total fuel system cleanup that outperforms competitorsEPA/LAC, CARB, and TOP TIER™ compliant
      $7.38
    • (0 reviews)
      # mpn126488264
      Universal Octane Boost by 104®. 16 oz. Add entire contents of bottle to gas tank and fill with fuel. One bottle treats up to 25 gallons. Safe for use in all gasoline blends, including Ethanol.
      Boosts Power!Get Better Gas Mileage
      $6.49
    • (0 reviews)
      # 986849610
      Universal Marvel Mystery Series Oil Additive by CD-2®, 1 Piece. There's no mystery to how this oil can improve and protect your car from the inside. Add Marvel Mystery Oil Additive to every tank of fuel and every oil change, and you'll...
      Made to high standards of qualityCrafted with the finest workmanship
      $2.08 - $6.74




    Guides & Articles

    Useful articles fast to read and guides easy to understand written by mechanics and car enthusiasts to turn your shopping experience with CARiD into a pleasure

    • Automotive Tools
      August 24, 2017
      What Special Tools Are Available For Fuel...
      Maintenance and repair work on fuel systems must be done with precision, no matter what part of it you're working on. Tools specifically designed for use on fuel...
      by Timothy Zahl
    • Performance Fuel System Parts
      April 03, 2017
      The Top 4 Reasons to Install a Performance...
      Sitting between your engine's air filter housing and intake manifold, a throttle body assembly exists for the purpose of controlling how much air enters a...
      by Michael Grayen
    • Replacement Fuel System Parts
      November 06, 2014
      How To Replace An In-Tank Fuel Sending Unit
      A Fuel tank sending unit is a term for the mechanical assembly inside your fuel tank which measures the level of liquid in the tank, then reports its findings to the...
      by Timothy Zahl
    • Replacement Fuel System Parts
      August 03, 2014
      How To Replace Fuel Injectors
      Fuel injectors spray fuel directly into your engine’s cylinders during the intake stroke when a piston moves down to allow air and fuel to fill the cylinder chamber....
      by Michael Grayen

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