Holley Sniper 2 EFI Master Kit Returnless Retrofit 550-510-3XD

The Holley Sniper 2 EFI Master Kit Returnless Retrofit is a fuel injection system featuring a Sniper 2 EFI throttle body in a square-bore configuration. Designed for retrofit applications, this kit combines electronic fuel injection functionality with an aluminum throttle body finished in silver.

The throttle body uses a square-bore design and is supplied as part of a master kit configuration. Its aluminum construction provides the stated material specification, while the silver finish gives the assembly a clean, finished appearance.

This Holley fuel injection kit is identified by part number 550-510-3XD and is designated as a returnless retrofit kit. Product data indicates that it is not air restricted and does not require truck freight shipping.

Features:

• Fuel Injection: Sniper 2 EFI fuel injection system
• Kit Type: Master kit for returnless retrofit applications
• Throttle Body: Square-bore throttle body
• Construction: Aluminum throttle body
• Finish: Silver
• Shipping Classification: Not designated as truck freight only
• Air Restriction: Not designated as air restricted