BMW Intake Boots & Hoses for BMW A90 MKV Supra B58 3.0L

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The intake boot provides a pathway for air from the air flow sensor to the intake manifold. On most BMWs the boot is made of rubber with an accordian shape that allows the engine to shift and vibrate. As with any rubber component the rubber can dry out and crack and that can lead to serious running and drivability issues. A crack in the boot means that air is entering the engine that is not being monitored by the airflow sensor. The engine computer relies on data from the airflow sensor to set the fuel mixture in the engine. Excess unmetered air can result in lean condition faults, rough running, misfires, and other performance issues. For misfire and lean condition faults, check your intake boots first.

As an alternative to the original rubber, we also offer silicone boots that are both stronger and last longer with a 4-layer silicone design. Samco silicone boots can also decrease your BMW's intake turbulence and restriction by replacing the accordian design with a smoothed internal surface. Samco boots are also perfect as part of a kit to eliminate the factory traction control system (sometimes called an ASC delete boot).
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Dinan B58 Turbo Inlet Pipe - Carbon Fiber - BMW G20 G22/23/26 G42, To...
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Dinan - Corporate Logo
T#:8076779
Part#: D760-0062
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$ 183.99

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02-11-2026

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Turbo inlet pipes serve two very distinct, and differing, purposes. On one hand, the optimization of a turbo inlet pipe will encourage better turbo efficiency and responsiveness by allowing the turbo to ingest more air by way of an unobstructed and larger volume flow path. On the other, you have a more visceral benefit that some may argue is equally important than that of efficiency/flow optimization --- increased sound. No matter which of the distinct purposes is favored, Dinan will deliver on both. Regardless of application, a Dinan turbo inlet replaces the weak, and failure-prone, plastic factory inlet with a more robust carbon fiber one. CNC machined fittings are utilized to ensure proper fitment and guarantee installation as a direct replacement to the OEM inlet. Beyond material and fitment however are the improvements to the characteristics of the primary element in the system, the pipe itself. The stock turbo inlet has incorporated additional features (multiple in some cases) that introduce flow restrictions and turbulence while also reducing turbo noises. All of which are unwanted but easily rectified by removing the various resonators and enlarging (and optimizing) the path for a more uniform flow. The result is an inlet that delivers not only more air and allows the turbo to be more efficient (work less) but also provides the oft-desired amplification to the turbo induction soundtrack. Features: Increased turbo efficiency and reliability courtesy of maximum unimpeded and uniform airflow. Eliminates the factory sound resonator for increased turbo vocalization. 14% increase in overall volume over OEM inlet. Average of 7.7% larger internal diameter throughout (maximum cross-sectional area allowed). Carbon fiber construction for increased durability and visual appeal. Direct replacement of OEM turbo inlet. Quick and easy bolt-on installation. Dinan Factory Matching (4yr/50k) Warranty Emissions Note: This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board, in order to achieve 50-state compliance, is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status.
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Rein Cloth Braided Fuel/Vacuum Hose - Black - 5 Meter
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Rein - Corporate Logo
T#:378470
Part#: N203531-5
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID
Rein Silicone Vacuum Hoses - Blue - 5 Meters (3.5mm ID)
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Rein - Corporate Logo
T#:379090
Part#: 11731259996-5
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$ 38.99

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03-17-2026

$ 33.99 USD
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$ 33.99 USD
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This silicone hose has an inner diameter of 3.5mm and outer diameter of 7.5mm, is blue in color, and arrives in a 5 Meter section that can be cut down to size.

Universal Throttle Body Coupler - 45 Degree 2.5" (63.50mm) ...
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ECS - Corporate Logo
T#:382969
Part#: 003402ECS03A-16
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$ 23.39 USD
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$ 38.99

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Elevate your BMW project with ECS Tuning silicone couplers and elbows, providing a high-quality, precision-engineered solution for various applications. Whether you're installing an intercooler, fabricating a custom intake system, or pursuing other automotive projects, ECS Tuning delivers reliable performance and durability. Trust ECS Tuning to meet your needs and enhance your BMW project.

  • High-quality silicone couplers and elbows for BMW projects
  • Precision-engineered for reliability and performance
  • Versatile solution for intercooler installations, custom intake systems, and more
  • Ensures durability and longevity for your automotive projects
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Plastic Vacuum Tubing Kit - black - 8 Feet
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ECS - Corporate Logo
T#:360488
Part#: 5097T321-8FT-A
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05-02-2026

$ 27.74 USD
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Ensure optimal engine performance with the replacement of your vacuum system hoses. The vacuum system plays a crucial role in the engine's functionality, transforming it into an efficient pump that influences air-fuel mixture and combustion. Damaged vacuum hoses can lead to various performance issues, from rough idle to difficulties starting the engine. If you're experiencing these issues, it's time to upgrade to this plastic hose with a 2.3mm inner diameter. The hose is black, arrives in an 8-foot section, and can be easily cut to the desired size for a perfect fit.

Key Features:

  • Engine Optimization: Replacing old hoses ensures the vacuum system operates at peak performance.
  • 2.3mm Inner Diameter: Designed to meet specific engine requirements.
  • Black Color: Blends seamlessly with the engine components.
  • 8-Foot Section: Provides flexibility to cut the hose to the required length.
  • Easy Installation: Upgrade without hassle for improved engine efficiency.

Upgrade your vacuum system with this high-quality plastic hose, addressing performance issues and ensuring your engine runs smoothly.

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Rein Silicone Vacuum Hoses - Black - 5 Meters (3.5mm ID)
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Rein - Corporate Logo
T#:51848535
Part#: 51731257971-5M
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$ 38.66 USD
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This silicone hose has an inner diameter of 3.5mm and outer diameter of 7.5mm, is black in color, and arrives in a 5 Meter section that can be cut down to size.

Silicone Coupler - Straight 3 5/8" (92mm)
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ECS - Corporate Logo
T#:377483
Part#: 003402ECS01A-07
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ECS Silicone Coupler

Upgrade your BMW with the ECS Silicone Coupler. This straight 3 5/8" ID (92mm) x 3" L coupler is designed to enhance your vehicle's performance and durability. Crafted from high-quality silicone, it ensures long-lasting reliability and superior performance.

  • Enhances vehicle performance
  • Durable construction for long-lasting reliability
  • Specifically designed for BMW vehicles
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CTS High Flow Turbo Inlet - Supra A90/A91 And G20 M340i G29 M40i B58C...
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CTS - Corporate Logo
T#:21176909
Part#: CTS-HW-450
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CTS Turbo is proud to announce our High Flow Turbo Inlet for Toyota Supra A90/A91 and BMW G20 M340i and G29 Z4 M40i with B58C 3.0L turbo engines. We designed our inlet to work with our intake system and it is compatible with the OEM intake system. Our inlet will provide more sound and flow compared to stock. This will improve throttle response, more power and reliability. Simple installation takes 10 minutes and can be done using basic hand tools. Product features: Large inside diameter for extremely high flow Cast aluminum with CNC machined flanges Compatible with most intake systems, including stock Durable aluminum construction, will not break like factory plastic part Simple installation Faster turbo spool, more airflow, improved turbo sound! Fitment: Toyota Supra A90/A91 B58C 3.0 (2020-present) BMW G29 Z4 M40i B58C 3.0 (2019-present) BMW G20 M340i B58c 3.0 (2020-present) Replaces the plastic turbo inlet that is found with BMW part number 13718656983
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Rein Cloth Braided Fuel/Vacuum Hose - Black - 1 Meter
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Rein - Corporate Logo
T#:363139
Part#: N203531-1
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$ 12.99 USD
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

1 Meter Vacuum Hose (3.5x7.5)
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Continental - Corporate Logo
T#:9448313
Part#: 11727545323-1M
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$ 7.99 USD
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Used in many locations on the engine
4MM Silicone Vacuum Hose - Red - 9 Feet
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Forge - Corporate Logo
T#:370918
Part#: VC04R
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$ 15.99 USD
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Enhance Engine Performance with Silicone Vacuum Line

Upgrade your car's vacuum system with the Silicone Vacuum Line, a vital component that significantly impacts engine performance. Engineered to resist heat and contaminants, this silicone hose promises exceptional durability, ensuring prolonged and reliable operation.

Featuring an inner diameter of 4mm and a vibrant red color, this silicone hose arrives in a 9-foot section, offering the flexibility to customize lengths as needed. Damaged vacuum hoses can lead to various performance issues, from rough idling to engine starting problems. Promptly replace worn-out hoses to optimize your vehicle's overall performance.

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3MM Silicone Vacuum Hose - Red - 9 Feet
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Forge - Corporate Logo
T#:370915
Part#: VC03R
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$ 14.99 USD
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Upgrade Your BMW with Forge 3MM Silicone Vacuum Hose - Red - 9 Feet

Upgrade your BMW's vacuum system with the Forge 3MM Silicone Vacuum Hose in Red, a high-quality solution designed for optimal performance and durability. This 9-foot silicone vacuum hose provides superior flexibility and resistance to extreme temperatures, making it ideal for various automotive applications. Engineered with precision, it ensures reliable vacuum pressure for efficient engine operation and component functionality. Whether you're replacing worn-out hoses or customizing your BMW's vacuum setup, the Forge Silicone Vacuum Hose offers reliability and performance you can trust.

  • High-quality silicone construction for durability
  • Superior flexibility for easy installation
  • Resistant to extreme temperatures
  • Ensures reliable vacuum pressure for efficient engine operation
  • Ideal for various automotive applications

Car suffering from vacuum leaks? This vacuum hose has a 3mm inner diameter. 

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Conti Tech Vacuum Hose (3.5x7.5) - 1 Meter
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Continental - Corporate Logo
T#:374693
Part#: 11727545323
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$ 8.25 USD
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Used in many locations on the engine
46.5mm To 61.0mm Silicone Coupler - Each
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ECS - Corporate Logo
T#:28570863
Part#: 017623ECS08A
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$ 19.19 USD
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For optimal performance, consider the 46.5mm To 61.0mm Silicone Coupler.

Engineered with durability and functionality in mind, this silicone coupler provides a reliable connection for various components in your vehicle's intake or cooling system. Its smooth interior surface promotes efficient airflow, while its flexible and reinforced construction ensures a secure fit and prevents leaks. Enjoy hassle-free installation and enhanced performance with this premium silicone coupler.

  • Durable silicone construction
  • Smooth interior surface for efficient airflow
  • Flexible and reinforced design prevents leaks
  • Secure fit for reliable performance
  • Hassle-free installation
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Mishimoto Silicone Transition Coupler - 3in. To 3.5in. - Black ...
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Mishimoto - Corporate Logo
T#:25241773
Part#: MMCP-3035B
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$ 11.99 USD
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This transition coupler is constructed of high-quality heat resistant silicone, making it useful for fitting air intakes, intercooler piping, and more.

Genuine BMW Hose Clamp 07129952104
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Genuine BMW - Corporate Logo
T#:6533
Part#: 07129952104
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$ 3.99 USD
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GENUINE BMW HOSE CLAMP 07129952104

Silicone Coupler - Straight 3" (76.20mm)
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ECS - Corporate Logo
T#:376702
Part#: 003402ECS01A-06
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Silicone Coupler - Straight 3" ID (76.20mm) x 3" L

No matter the project, ECS Tuning silicone couplers and elbows offer a high-quality, precision-engineered solution to your needs. Whether you're installing an intercooler, fabricating a custom intake system, or whatever else you can dream up, ECS Tuning has you covered.

  • High-quality silicone construction for durability
  • Precision-engineered design ensures a perfect fit
  • Versatile solution for various automotive projects
  • Enhances performance and reliability
  • Compatible with BMW and other vehicles
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12.0" 3.75mm (5/32") ID Black Silicone Vacuum Hose ...
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ECS - Corporate Logo
T#:19825269
Part#: 2101
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$ 19.79 USD
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Vacuum Hose (3.5x7.5) - 1 Meter
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Genuine BMW - Corporate Logo
T#:53644191
Part#: 11727545323-1
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Nozzle Mounting adapter for hose
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SnowPerformance - Corporate Logo
T#:31522909
Part#: 40110
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$ 31.99 USD
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Rein Cloth Braided Fuel/Vacuum Hose - Black - 20 Meter
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Rein - Corporate Logo
T#:378471
Part#: N203531-20
Ships in 4 Business Days
$ 363.52 USD
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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

Rein Silicone Vaccum Hose - Black - 65 Feet
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Rein - Corporate Logo
T#:378475
Part#: 5173125797120BLK
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$ 175.99 USD
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Replace your cracked or frayed vacuum lines. 3.5mm
Rein Silicone Vacuum Hoses - Blue - 3 Feet
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Rein - Corporate Logo
T#:378472
Part#: 11731259996-1
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$ 6.11 USD
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Replace your cracked or frayed vacuum lines. 3.5mm
BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm) ...
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ECS - Corporate Logo
T#:376708
Part#: 003402ECS01A-03
Ships in 8 Business Days
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Upgrade your BMW or MINI with the BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm). This high-quality silicone coupler is designed to provide a secure and leak-free connection for your vehicle's intake or cooling system. Engineered for durability and flexibility, it ensures optimal performance under various conditions. With its straight design and precise dimensions, this silicone coupler offers easy installation and a perfect fit for your BMW or MINI.

  • Provides a secure and leak-free connection
  • Engineered for durability and flexibility
  • Straight design for easy installation
  • Perfect fit for BMW and MINI vehicles
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3" To 2.5" Silicone Coupler 3" Length
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ECS - Corporate Logo
T#:363896
Part#: 003402ECS04A-02
Ships on Sep 8, 2026
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3" To 2.5" Silicone Coupler 3" Length

Enhance the performance and durability of your BMW or MINI with the 3" To 2.5" Silicone Coupler 3" Length. This silicone coupler provides a reliable connection between components, ensuring optimal airflow and reducing the risk of leaks. Engineered for durability and heat resistance, it withstands high temperatures and harsh conditions. Upgrade your BMW or MINI with this premium silicone coupler for improved performance.

  • Reliable connection for optimal airflow
  • Reduces the risk of leaks for enhanced performance
  • Engineered for durability and heat resistance
  • Fits both BMW and MINI models
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Forge Silicone Vacuum Hoses
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Forge - Corporate Logo
T#:558490
Part#: FORGEVAC
Ships on Jul 7, 2026
Starting at $ 14.99 USD
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Starting at $ 14.99 USD
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Car suffering from vacuum leaks? Choose from a 4mm, 5mm, or 6mm diameter vacuum hose from Forge to fix your leak and bring your BMW back to life.
4MM Silicone Vacuum Hose - Black - 9 Feet
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Forge - Corporate Logo
T#:370919
Part#: VC04B
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Car suffering from vacuum leaks? This vacuum hose has a 4mm inner diameter. 

4MM Silicone Vacuum Hose - Blue - 9 Feet
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Forge - Corporate Logo
T#:370917
Part#: VC04
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Car suffering from vacuum leaks? This vacuum hose has a 4mm inner diameter.