DeatschWerks 16U-IMP-0550-4 550cc Universal 4-Cylinder Import Fuel Injector Kit

The DeatschWerks 16U-IMP-0550-4 is a universal 4-cylinder import fuel injector kit delivering a 550cc/min flow rate — a popular upgrade for turbocharged and high-performance import engines requiring additional fueling capacity beyond stock injector limits.

Key Features:

• Flow Rate: 550cc/min (approximately 52 lb/hr)
• Connector Shape: USCAR
• Ethanol Compatible: E85 and flex fuel ready
• Note: Not MTBE compatible
• Flow balanced in-house by DeatschWerks to within 1–2% variation — flow report included
• Characterized across 450 data points per injector in accordance with SAE J1832 guidelines
• Excellent spray pattern and atomization for optimized idle quality and tuning precision
• Tuning data and tech data sheet available from DeatschWerks
• Backed by a Limited Lifetime Warranty

DeatschWerks collects 450 data points on each injector part number using precision flow benches, then formats the characterization data for compatibility with popular aftermarket tuning platforms. This rigorous testing and data collection process ensures your tuner has everything needed to dial in fuel delivery accurately and safely.

The 16U-IMP-0550-4 is well-suited for modified import builds running forced induction, aggressive cam profiles, or alternative fuels where factory injectors have become a bottleneck. Universal fitment makes these injectors adaptable across a wide range of 4-cylinder import applications.