550cc Fuel Injectors for Honda / Acura B-Series, D-Series, H-Series

Precision Fueling for Honda & Acura Enthusiasts For legendary engines like the B16, B18, D16, and H22, fuel management is the key to unlocking hidden power. The SouthBay 550cc Fuel Injectors are engineered to offer a significant increase in flow over stock units, making them the ideal choice for Stage 2 builds, small turbo setups, or high-revving naturally aspirated engines.

Optimized Atomization & Consistency Designed to be a direct fit for most B, D, and H-series fuel rails, these injectors feature advanced nozzle technology. This ensures a finely atomized spray pattern that leads to better combustion, improved throttle response, and a stable idle—even in high-performance environments.

Key Features:

• Engineered for Honda/Acura: Direct fitment for B-Series, D-Series, and H-Series intake manifolds and fuel rails.

• High-Flow Performance: 550cc capacity supports increased horsepower safely on pump gas.

• Superior Reliability: Built to withstand the high-vibration and high-heat environments common in tuned Honda engines.

• Proven Accuracy: Every set is flow-matched to ensure balanced fuel delivery across all cylinders, protecting your engine from lean conditions.

Vehicle & Engine Compatibility:

• B-Series: B16, B17, B18, B20

• D-Series: D15, D16

• H-Series: H22, H23

• Note: Some applications may require electrical plug adapters (EV1 style). 

We appreciate your business and are committed to providing you with exceptional service and timely delivery. Please review the shipping information below for your order.

Order Processing Time:

Orders are usually processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days.

Shipping Methods:

Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)

Packaging:

Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.

Shipping Rates:

Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.

Order Tracking:

Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your account.

International Shipping:

We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.