2200cc Fuel Injectors for BMW E90 / E92 / E93 M3 (S65 Engine) - SouthBay Performance Set

Precision Fueling for the High-Revving S65

When pushing the limits of the BMW S65 engine, fuel volume and atomization are critical. Our 2200cc SouthBay Fuel Injectors provide the massive overhead required for forced induction applications while maintaining the fast response times needed for the M3’s high-RPM nature. These injectors are optimized in-house and dynamically flow-matched to within ±1% to ensure perfect cylinder balance and smooth idle quality.

Advanced Engineering & Fitment

• Plug-and-Play Convenience: Designed for a direct fit into the E9X M3 fuel rail. Includes the required wire adapter harnesses—no cutting or soldering of the factory BMW harness is necessary.

• Superior Linearity: Tested and rated at 43.5 psi (3 Bar), these injectors provide incredible low-pulse-width stability, making them easier to tune for both daily driving and track use.

• Durability: Built with stainless steel internals and high-grade seals, ensuring compatibility with pump gas, race fuel, and Ethanol.

⚠️ IMPORTANT: E85 USE & MAINTENANCE WARNING

Due to the high flow rate and tight internal tolerances of 2200cc internals, these injectors require specific maintenance when used with E85/Ethanol.

• DO NOT leave E85 sitting in the fuel system during periods of inactivity (2+ weeks).

• We strictly recommend flushing the system with regular pump gas before long-term storage to prevent internal sticking or "gumming" caused by Ethanol deposits.

Vehicle Fitment:

• BMW M3 (E90 / E92 / E93): 2008–2013 (S65 4.0L V8)

• Note: Intended for high-horsepower forced induction or extreme E85 builds.