Fuel Injector Clinic 1650cc High Impedance Fuel Injector Set for 2007-2016 BMW x35i N54 / N55 (IS834-1650H)
Take your BMW N54 or N55 build to the next level with the Fuel Injector Clinic IS834-1650H 1650cc High Impedance Fuel Injector Set. Designed specifically for 2007-2016 BMW x35i models utilizing an aftermarket intake manifold or port injection kit, this six-injector package delivers exceptional fuel flow for high-horsepower street and race applications while maintaining the smooth idle quality and drivability Fuel Injector Clinic is known for. Whether you're building an aggressive E85 street car or a serious competition vehicle, these injectors provide the fueling precision required to support your performance goals.
Featuring advanced high impedance ball and seat injector technology, the IS834-1650H offers excellent linearity and superior short pulse width repeatability for predictable tuning across the entire operating range. This injector set is a plug and play fit to the OEM harness, making installation straightforward on compatible port injection systems. Every injector is individually flow matched using Fuel Injector Clinic's proprietary Data Match Technology and includes a serial-number-specific calibration sheet with detailed flow and latency values, providing industry-leading tuning accuracy.
The 1650cc high impedance injector is Fuel Injector Clinic's largest high impedance injector that is compatible with virtually all race fuels. Thanks to its stainless alloy valve construction, it delivers outstanding idle performance while supporting substantial horsepower on both gasoline and E85, making it one of the most versatile injector options available for serious performance builds.
Quick Specs
- Part Number: IS834-1650H
- Injector Size: 1650cc/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 wiring harness
- Flow matched using Fuel Injector Clinic Data Match Technology
- Individually serial numbered with injector-specific calibration data sheet included
- Flow tested at 43.5 PSI (3 Bar) using CF-16B calibration fluid at 90 degrees Fahrenheit
- Stainless alloy valve construction
- Compatible with pump gasoline, E85, Q16, VP Import, FTW, MTBE oxygenated race fuels, and other performance fuels
- Includes all required O-rings for the intended application
- Lifetime warranty against manufacturing defects
Features
- Designed specifically for BMW N54 and N55 x35i engines using aftermarket port injection systems
- 1650cc high impedance injectors support serious horsepower levels
- Plug and play connection to the factory OEM harness for simplified installation
- Excellent idle quality despite extremely high flow capacity
- Superior short pulse width repeatability improves drivability and tuning accuracy
- Fuel Injector Clinic Data Match Technology provides industry-leading injector matching
- Stainless alloy valve construction provides compatibility with virtually all common race fuels
- Each injector is individually serial numbered and supplied with detailed calibration data
- Flow tested and matched for consistent cylinder-to-cylinder fuel delivery
- Backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects
Fitment
- 2007 BMW 335i (N54)
- 2008 BMW 335i (N54)
- 2009 BMW 335i (N54)
- 2010 BMW 335i (N54 / N55)
- 2011 BMW 335i (N55)
- 2012 BMW 335i (N55)
- 2013 BMW 335i (N55)
- 2014 BMW 335i (N55)
- 2008 BMW 135i (N54)
- 2009 BMW 135i (N54)
- 2010 BMW 135i (N54)
- 2011 BMW 135i (N55)
- 2012 BMW 135i (N55)
- 2013 BMW 135i (N55)
- 2011 BMW 335is (N54)
- 2012 BMW 335is (N54)
- 2013 BMW 335is (N54)
- 2009 BMW Z4 sDrive35i (N54)
- 2010 BMW Z4 sDrive35i (N54)
- 2011 BMW Z4 sDrive35i (N54)
- 2012 BMW Z4 sDrive35i (N54)
- 2013 BMW Z4 sDrive35i (N54)
- 2014 BMW Z4 sDrive35i (N54)
- 2015 BMW Z4 sDrive35i (N54)
- 2016 BMW Z4 sDrive35i (N54)
- 2010 BMW Z4 sDrive35is (N54)
- 2011 BMW Z4 sDrive35is (N54)
- 2012 BMW Z4 sDrive35is (N54)
- 2013 BMW Z4 sDrive35is (N54)
- 2014 BMW Z4 sDrive35is (N54)
- 2015 BMW Z4 sDrive35is (N54)
- 2016 BMW Z4 sDrive35is (N54)
FAQs
What fuels are compatible with the IS834-1650H?
The 1650cc injector features a stainless alloy valve construction, making it compatible with pump gasoline, E85, Q16, VP Import, FTW, MTBE oxygenated race fuels, and virtually all commonly used performance fuels.
Do these injectors replace the factory direct injection injectors?
No. The IS834-1650H is designed for BMW N54 and N55 engines equipped with an aftermarket intake manifold or port injection kit. They are intended for supplemental port injection and are not a replacement for 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 responsive street-driven N54 or an all-out N55 race car, our experienced team can help you choose the right fueling solution for your combination.
Need help selecting injectors or port injection components for your build?
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

