Fuel Injector Clinic 850cc High Impedance Fuel Injector Set for 2016-2025 BMW x40i (IS831-0850H)
Give your BMW x40i the fueling precision needed for increased boost and higher horsepower with the Fuel Injector Clinic IS831-0850H 850cc High Impedance Fuel Injector Set. Designed specifically for 2016-2025 BMW x40i applications equipped with an aftermarket intake manifold or port injection kit, this matched set of six injectors delivers outstanding fuel control, excellent drivability, and the reliability that Fuel Injector Clinic has become known for. Whether you're building a street-focused performance car or preparing for track use, these injectors provide consistent fuel delivery across the entire operating range.
The IS831-0850H utilizes advanced high impedance ball and seat injector technology for exceptional linearity and superior short pulse width repeatability, making tuning easier while maintaining smooth idle quality and crisp throttle response. This application features a plug and play fit to the OEM-style injector harness, simplifying installation on compatible BMW x40i port injection systems. Every injector is individually serial numbered and dynamically flow matched using Fuel Injector Clinic's proprietary Data Match Technology, with a detailed Data Match Sheet included to provide injector-specific flow and latency values for precise ECU calibration.
Quick Specs
- Part Number: IS831-0850H
- Injector Flow Rate: 850cc/min
- Injector Quantity: 6
- High impedance (saturated) ball and seat injectors
- Designed for aftermarket intake manifold or port injection kit applications
- Plug and play fit to the OEM-style injector harness
- Flow matched using Fuel Injector Clinic Data Match Technology
- Each injector is individually serial numbered
- Includes injector-specific Data Match Sheet with flow and latency information
- Flow tested at 43.5 PSI (3 Bar) using calibration fluid at 90 degrees Fahrenheit
- Application-specific O-rings included
- Lifetime warranty against manufacturing defects
Features
- Designed specifically for BMW x40i applications utilizing aftermarket port injection systems
- 850cc high impedance injectors provide excellent fuel control for upgraded performance builds
- Plug and play fit to the OEM-style injector harness with no connector conversion required
- Excellent injector linearity for accurate fuel delivery
- Superior short pulse width repeatability improves idle quality and drivability
- Fuel Injector Clinic Data Match Technology provides industry-leading injector matching
- Each injector is individually serial numbered with detailed calibration data
- Flow tested for outstanding cylinder-to-cylinder consistency
- Includes all required O-rings for the intended application
- 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: The IS831-0850H is designed for use with an aftermarket port injection system and is not intended to replace the factory direct injection injectors. If your vehicle utilizes a custom intake manifold, fuel rail, or other non-standard components, please verify compatibility before ordering.
FAQs
Are these injectors compatible with the factory direct injection system?
No. The IS831-0850H is designed specifically for BMW x40i applications using an aftermarket intake manifold or supplemental port injection kit. It is not a replacement for the factory direct injection injectors.
What is included with the injector set?
Each kit includes six matched injectors, application-specific O-rings, and an individual Data Match Sheet containing serial numbers, flow data, and latency values to assist with accurate ECU tuning.
Why Buy From Beefcake Racing?
Beefcake Racing proudly offers genuine Fuel Injector Clinic products backed by competitive pricing, fast shipping, and knowledgeable technical support. Whether you're planning your first fuel system upgrade or building a high-horsepower BMW x40i, our team can help you select the right injectors and supporting components for your combination.
Need help selecting injectors or port injection components for your build?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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