Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededHOLLEYPART NUMBER: 510-550-510
550-510 Sniper EFI Self-Tuning Kit with Shiny Finish
$1,25995
Ships on Sep 04, 2026
Lowest Price GuaranteeEFI Self-Tuning Kits
Sniper EFI Self-Tuning KitIncludes Handheld EFI Monitor Shiny Finish Four Fuel Injectors
Bolt On Carburetor Replacement (Designed To Fit Single And Dual Carb Manifolds) Throttle Body Mounted ECU Supports Up To 650hp 4 Wire Vehicle Connection (Battery +, Battery -, Switched Ignition & RPM) Integrated Fuel Pressure Regulator Integrated Ignition Timing Control And Coil Driver Color Touchscreen For Setup And Gauge Views Calibration Wizard - No Laptop Required Self-Tuning ECU
Holley 550-510 Sniper EFI Self-Tuning Kit with Shiny Finish Features:
Note: If using a Holley Dual Sync distributor, adapter harness p/n 510-558-493 is required to connect to the Sniper EFI.
- For Troubleshooting Tips setting up your New Holley Sniper EFI System, please see this helpful video from Holley Performance.
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeFuel Injection System
BrandHOLLEY
Package Height9.3
Package Width12.4
Package Length14.4
Weight12.1 PG
Part CategoryPerformance Parts
Self TuningNo
Power Adder CompatibleNo
Timing Control CompatibleNo
Part FitmentSemi Universal
User TunableNo
Vendor Part NumberSNIPER EFI KIT SHINY
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![Air Cleaner with Logo 14 in. x 3 in. [Chrome-Plated]](https://www.jegs.com/images/mini_200/500/555/555-50022.jpg)
JEGS
Air Cleaner with Logo 14 in. x 3 in. [Chrome-Plated]
Part Number : 555-50022
$5299$57.19
You Save$4.20
HOLLEY
Carburetor Throttle Linkage Ball Stud Assortment Kit with 1/4, 5/16, 7/32 and 3/8 in. Studs
Part Number : 510-20-2
$2299
![556-152 Sniper EFI HyperSpark Ignition Coil [Black]](https://www.jegs.com/images/mini_200/500/510/510-556-152.jpg)
HOLLEY
565-300 Sniper EFI HyperSpark Distributor For Small Block & Big Block Chevy
Part Number : 510-565-300
$47895
![TCB-40HS Throttle and Kickdown Cable Mounting Bracket for Holley Sniper EFI [Stainless]](https://www.jegs.com/images/mini_200/600/625/625-tcb-40hs.jpg)
LOKAR
TCB-40HS Throttle and Kickdown Cable Mounting Bracket for Holley Sniper EFI [Stainless]
Part Number : 625-TCB-40HS
$10595
![XTCB-40HS Throttle and Kickdown Cable Mounting Bracket for Holley Sniper EFI [Black Stainless]](https://www.jegs.com/images/mini_200/600/625/625-xtcb-40hs.jpg)
LOKAR
XTCB-40HS Throttle and Kickdown Cable Mounting Bracket for Holley Sniper EFI [Black Stainless]
Part Number : 625-XTCB-40HS
$10595
JEGS
Part Number : 555-50022
$5299$57.19
You Save$4.20
ITEM YOU MAY ALSO CONSIDER
HOLLEY
550-870 Sniper Stealth 4150 Self-Tuning Fuel Injection System
Part Number : 510-550-870
$1,59995
HOLLEY
550-871 Sniper Stealth 4150 Self-Tuning Fuel Injection System
Part Number : 510-550-871
$1,64995
![Bandit Series EFI Throttle Body System [Up to 650HP]](https://www.jegs.com/images/mini_200/500/555/555-16800.jpg)
JEGS
Bandit Series EFI Throttle Body System [Up to 650HP]
Part Number : 555-16800
$84999$971.99
You Save$122.00
HOLLEY
550-872 Sniper Stealth 4150 Self-Tuning Fuel Injection System
Part Number : 510-550-872
$1,64995
FITECH FUEL INJECTION
30005 Easy Street EFI 600 HP Throttle Body System Kit
Part Number : 546-30005
$92600
ACES FUEL INJECTION
AS2014P Royal Flush TBI/CDI EFI System, Polished
Part Number : 021-AS2014P
$1,09000
HOLLEY
Part Number : 510-550-870
$1,59995
HOLLEY
Part Number : 510-550-871
$1,64995
Some parts are not legal for use in California or other states with similar laws / regulations
