SKU: 84474043612

Holley Sniper EFI Self-Tuning Kit + Handheld EFI Monitor Gold # HO550-516

Sale price$855.00 Regular price$950.00
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Description

Holley Sniper EFI Self-Tuning Kit + Handheld EFI Monitor Gold # HO550-516Holley Sniper EFI Self Tuning Kit + Handheld EFI Monitor Gold # HO550 516 Fuel Injection System, Holley Sniper EFI, Self Tuning, Tuning Kit, Gold Throttle Body, Kit Fuel Injection Style: Throttle body Fuel Injection System Type: Single 4 Barrel Throttle Body (4150 Flange) Maximum Horsepower with Gas: 650 Timing Control Compatible: Yes Power Adder Compatible: No ECM Included: Yes Self Tuning: Yes User Tunable: Yes Fuel Pump Included: No EGR: No

Holley Sniper EFI Self-Tuning Kit + Handheld EFI Monitor Gold # HO550-516
Fuel Injection System, Holley Sniper EFI, Self-Tuning, Tuning Kit, Gold Throttle Body, Kit
Fuel Injection Style:
Throttle body
Fuel Injection System Type:
Single 4-Barrel Throttle Body (4150 Flange)
Maximum Horsepower with Gas:
650
Timing Control Compatible:
Yes
Power Adder Compatible:
No
ECM Included:
Yes
Self Tuning:
Yes
User Tunable:
Yes
Fuel Pump Included:
No
EGR:
No
Transmission Controller Included:
No
Metering Style:
Speed density
Intake Manifold Included:
No
Multi-Port Fuel Rails Included:
No
Throttle Body Included:
Yes
Throttle Body Mounting Flange:
4-barrel square bore
Venturi Quantity:
4
Venturi Diameter (mm):
44.45mm
Airflow Rate (cfm):
800 cfm
Throttle Body Material:
Cast aluminum
Throttle Body Finish:
Gold
Injectors Included:
Yes
Injector Size (lbs/hr):
100 lbs./hr.
Calibration Module Included:
Yes
Wiring Harness Included:
Yes
Oxygen Sensor Included:
Yes
Fuel Pressure Regulator Included:
Yes
Distributor Included:
No
MAP Sensor Included:
Yes
IAT Sensor Included:
Yes
TPS Sensor Included:
Yes
IAC Motor Included:
Yes
Quantity:
Sold as a kit.
Notes:
Kit includes 4 injectors and can support up to 650 hp.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84474043612

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Marcia Smith
Houston, US
★★★★★ 5
perfect!
Size: Ultra Slim (2.25-Inch Height), Color: Blue
I love to sit in my recliner and rest my head on this flat pillow! It's wonderful and will be cool in the summer
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Reviewed in the United States on April 26, 2026
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debra bowers
Los Angeles, US
★★★★★ 5
Thin gel pillow
Size: Ultra Slim (2.75-Inch Height), Color: Blue
Very soft and comfortable
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Reviewed in the United States on May 26, 2026
T
Verified Purchase
Tonette
Natrona Heights, US
★★★★★ 5
Great pillow
Size: Ultra Slim (2.75-Inch Height), Color: Blue
Love, love this pillow. Great for my sleeping wedge for my neck and back support.
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Reviewed in the United States on May 15, 2026
S
Verified Purchase
Stephanie Q
San Leandro, US
★★★★★ 4
It's fine
Size: Ultra Slim (2.75-Inch Height), Color: Blue
I got this because it was recommended for stomach and side sleeping. The pillow itself is luxury so soft. It isn't the pillows fault but when I sleep on my sides I sleep on my arms and my neck pain hasn't subsided at all. It's been about four nights so far. I ordered one for my husband also cause he likes flat pillows and he absolutely loves it. If it changes for me I'll update.
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Reviewed in the United States on April 28, 2026
K
Verified Purchase
Kindle Customer
Lake Worth, US
★★★★★ 5
Fantastic
Size: Ultra Slim (2.75-Inch Height), Color: Blue
This pillow is very soft and comfortable, and the cool side of the pillowcase works wonderfully.
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Reviewed in the United States on May 25, 2026

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