Fuel Injector Clinic 2150cc High Impedance Fuel Injector Set for 2016-2025 BMW x40i (IS831-2150H)
When your BMW x40i build demands maximum fuel delivery without sacrificing drivability, the Fuel Injector Clinic IS831-2150H 2150cc High Impedance Fuel Injector Set delivers the performance serious racers and high-horsepower enthusiasts expect. Designed specifically for 2016-2025 BMW x40i applications equipped with an aftermarket intake manifold or port injection kit, this six-injector package combines exceptional fuel flow with outstanding low pulse width control, making it an excellent choice for extreme E85 and high-boost applications.
Unlike many ultra-high-flow injectors, the IS831-2150H utilizes advanced high impedance ball and seat technology together with Fuel Injector Clinic's proprietary Dynamic Data Match Technology to dramatically improve injector consistency during idle and part-throttle operation. Every injector is individually serial numbered, dynamically flow matched, and supplied with a detailed Data Match Sheet containing injector-specific flow and latency information for more accurate ECU calibration. This kit includes Denso injector pigtails (PGTDEN6), while PADPDtoU6 adapter harnesses are available separately for additional installation flexibility.
The 2150cc injector represents Fuel Injector Clinic's highest flowing injector designed for applications requiring exceptional short pulse width control. While it offers incredible fueling capability, users should note that these injectors are not compatible with MTBE oxygenated fuels such as Q16 or VP Import. Additionally, vehicles operating on alcohol-based fuels such as E85 should follow Fuel Injector Clinic's storage and maintenance recommendations to help prevent corrosion during extended periods of inactivity.
Quick Specs
- Part Number: IS831-2150H
- Injector Size: 2150cc/min
- Injector Quantity: 6
- High impedance (saturated) ball and seat injectors
- Designed for aftermarket intake manifold or port injection kit applications
- Includes Denso injector pigtails (PGTDEN6)
- Optional USCAR adapter harnesses available (PADPDtoU6)
- Dynamic Data Match Technology with injector-specific calibration data
- Individually serial numbered injectors
- Flow tested at 43.5 PSI (3 Bar) using CF-16B calibration fluid at 90 degrees Fahrenheit
- Application-specific O-rings included
- Lifetime warranty against manufacturing defects
- Not compatible with MTBE oxygenated fuels including Q16 and VP Import
Features
- Designed for BMW x40i applications utilizing aftermarket port injection systems
- Massive 2150cc fuel flow capacity for extreme horsepower applications
- High impedance injector design provides excellent ECU compatibility
- Dynamic Data Match Technology significantly improves idle and part-throttle control
- Outstanding short pulse width repeatability for easier tuning
- Includes Denso injector pigtails for installation
- Optional USCAR adapter harnesses available separately
- Each injector is individually serial numbered with detailed calibration data
- Flow matched for exceptional cylinder-to-cylinder consistency
- Backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects
Fitment
- 2016-2025 BMW x40i models equipped with the applicable aftermarket intake manifold or port injection kit.
Important Fuel Compatibility Information: The IS831-2150H utilizes an internal seal that can swell when exposed to MTBE oxygenated fuels such as Q16 or VP Import, causing a significant reduction in injector flow. These injectors should not be used with MTBE oxygenated fuels. Vehicles operating on E85 or other alcohol-based fuels should also follow Fuel Injector Clinic's recommended maintenance procedures during extended storage periods.
FAQs
Can I use these injectors with Q16 or VP Import race fuel?
No. Fuel Injector Clinic specifically advises against using the IS831-2150H with MTBE oxygenated fuels such as Q16 and VP Import because internal seal swelling can significantly reduce injector flow.
Do these injectors replace the factory direct injection injectors?
No. The IS831-2150H is designed for BMW x40i applications equipped with an aftermarket intake manifold or port injection kit. They are intended for supplemental port injection and do not replace the factory direct injection system.
Why Buy From Beefcake Racing?
Beefcake Racing proudly supplies genuine Fuel Injector Clinic products backed by competitive pricing, fast shipping, and expert technical support. Whether you're building a high-boost street car or an all-out race vehicle, our knowledgeable team can help you select the proper injectors and supporting fuel system components for your BMW x40i project.
Need help selecting injectors or port injection components for your build?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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