Fuel Injector Clinic 660cc-SP High Impedance Fuel Injector Set for 2016-2025 BMW x40i (IS831-0660H-SP)
Upgrade your BMW x40i's port injection system with the Fuel Injector Clinic IS831-0660H-SP 660cc-SP High Impedance Fuel Injector Set. Engineered specifically for 2016-2025 BMW x40i applications equipped with an aftermarket intake manifold or port injection kit, this matched set of six injectors delivers the precise fuel control, excellent drivability, and consistent performance that Fuel Injector Clinic is known for. Whether you're adding moderate boost, increasing ethanol content, or improving your overall fuel system, these injectors provide dependable fueling with OEM-like manners.
The IS831-0660H-SP features Fuel Injector Clinic's advanced 660cc-SP high impedance ball and seat injector technology, offering excellent linearity and superior short pulse width repeatability for smooth idle quality and accurate fuel delivery throughout the RPM range. This application is a plug and play fit to the OEM-style injector harness, making installation simple on compatible BMW x40i 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 values for highly accurate ECU calibration.
Quick Specs
- Part Number: IS831-0660H-SP
- Injector Flow Rate: 660cc/min (660cc-SP)
- 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
- 660cc-SP injectors provide precise fuel delivery for upgraded street and performance builds
- Plug and play fit to the OEM-style injector harness with no connector conversion required
- Excellent injector linearity for accurate fueling throughout the operating range
- Superior short pulse width repeatability delivers excellent idle quality and throttle response
- 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 a 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 IS831-0660H-SP is intended for use with an aftermarket port injection system and is not a replacement for 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
Is the IS831-0660H-SP a direct replacement for the factory injectors?
No. This injector set is designed specifically for aftermarket port injection systems used with compatible intake manifolds. It supplements the factory direct injection system rather than replacing it.
What is included with this injector set?
Each kit includes six precisely matched injectors, application-specific O-rings, and an injector-specific Data Match Sheet containing flow and latency values to simplify ECU tuning and maximize fuel delivery consistency.
Why Buy From Beefcake Racing?
Beefcake Racing proudly supplies genuine Fuel Injector Clinic products backed by competitive pricing, fast shipping, and knowledgeable technical support. Whether you're upgrading your street-driven BMW x40i or building a high-performance race car, our experienced team can help you select the right injectors and supporting fuel system components for your goals.
Need help selecting injectors or port injection components for your build?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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