Clean Injection Performance CI-450 Series 450cc injectors are designed to suit BMW e30 4 Cylinder S14 Engine. The injectors will fit the factory fuel rail and factory injector harness without any modifications. PLEASE VIEW VEHICLE COMPATIBILITY GUIDE BELOW. 
 
 
The injectors are compatible with all known fuels including e85. The injectors retain a consistent linear flow from 3 bar to 7 bar fuel pressure. Very tuner friendly with fuel trimming down to 1.1ms.The injectors utilize a 4-hole disc mist spray pattern with excellent fuel atomization resulting in superb idle conditions. Injectors are dynamically and statically flow-tested on the industry-leading ASNU Classic test equipment. They are then sealed and packed in balanced sets within 1 percent.  Injectors will come with a flow sheet with full data specs including injector latency/dead time data for easy tuning. 
 
 
Clean Injection Pro Series Fuel Injectors are built to stringent OE requirements that offer identical factory fit for easy installation. They deliver an accurate, tightly controlled fuel spray pattern that allows for more efficient vaporization. Clean Injection Pro Series Fuel Injectors feature internal seal rings protected from fuel exposure for longer life and improved sealing materials to provide cold sealing to -40°C for better cold starts. Plus, injectors are manufactured using components and seals that aren't sensitive to different fuels or fuel blends, including ethanol mixtures. Clean Injection Pro Series Fuel Injectors also provide optimal performance thanks to extra fuel filtering protection to eliminate contaminants.
 
INJECTOR FEATURES:
 
Made in U.S.A trusted quality! E85 Compatible!
Flow Matched Sets within ≤ 1% Static and Dynamic flow rates
Full Injector Latency Data Provided
Tunable to factory Rock solid Idle
Excellent Fuel Atomization
Direct Plug and Play Fit
Fast Response time
Consistent performance all the way to 100psi+ Fuel Pressures
2 Year Unlimited Mile Warranty
Stainless Steel Internals 
 
Fitment Guide:
- 1986-1990 BMW M3 (E30 w/ S14B23, S14B25 Evo2/3)
 
 
Injector specs:
 
Static Flow Rate @ 43.5PSI  = 450cc 

Coil Resistance: 12 Ohms / High Impedance / Saturated
14mm Inlet Diameter
60mm Injector length 

Factory fitted with Viton upper and lower o-ring