Fuel Injector Clinic 540cc High Impedance Fuel Injector Set for 2016-2025 BMW x40i (IS831-0540H)
Whether you're upgrading your BMW x40i for mild boost increases, ethanol blends, or simply building a more capable fuel system, the Fuel Injector Clinic IS831-0540H 540cc High Impedance Fuel Injector Set delivers the precision and reliability serious enthusiasts demand. Designed specifically for 2016-2025 BMW x40i applications equipped with an aftermarket intake manifold or port injection kit, this matched set of six injectors provides excellent drivability while supplying the additional fuel needed for performance upgrades.
Featuring Fuel Injector Clinic's advanced high impedance ball and seat injector technology, the IS831-0540H offers exceptional linearity and outstanding short pulse width repeatability for smooth idle characteristics, crisp throttle response, and accurate fuel delivery throughout the RPM range. This application is a plug and play fit to the OEM-style injector harness, eliminating the need for connector modifications on compatible port injection systems. Every injector is individually serial numbered and precisely matched using Fuel Injector Clinic's proprietary Data Match Technology, with a detailed Data Match Sheet included to provide injector-specific flow and latency information for highly accurate ECU calibration.
Quick Specs
- Part Number: IS831-0540H
- Injector Flow Rate: 540cc/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
- 540cc high impedance injectors provide precise fuel delivery for lightly modified and performance applications
- Plug and play fit to the OEM-style injector harness with no connector conversion required
- Excellent injector linearity for consistent fueling throughout the operating range
- Superior short pulse width repeatability delivers smooth idle quality and excellent drivability
- Fuel Injector Clinic Data Match Technology provides industry-leading injector consistency
- Each injector is individually serial numbered with detailed calibration data
- Flow tested and matched for exceptional cylinder-to-cylinder consistency
- Application-specific O-rings included for proper installation
- 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 IS831-0540H is designed for use with an aftermarket port injection system and is not intended to replace the factory direct injection injectors. If your application utilizes a custom intake manifold, fuel rail, or other non-standard components, please verify compatibility before ordering.
FAQs
Who is the IS831-0540H designed for?
The 540cc injector is an excellent choice for BMW x40i owners running an aftermarket port injection system who need additional fuel capacity while maintaining excellent idle quality, drivability, and tuning precision for street or mild performance applications.
What makes Fuel Injector Clinic's Data Match Technology different?
Every injector is individually flow tested, dynamically matched, and assigned a unique serial number. The included Data Match Sheet provides injector-specific flow and latency data, helping tuners achieve more accurate calibration and outstanding cylinder-to-cylinder fuel consistency.
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 upgrading your street-driven BMW x40i or planning a complete high-performance fuel system, our experienced team can help you select the right injectors and supporting components for your build.
Need help selecting injectors or port injection components for your build?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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