Sniper EFI Stealth 4500 Fuel Injection System Performance Holley Performance display
Sniper EFI Stealth 4500 Fuel Injection System Performance Holley Performance display
 Sniper EFI Stealth 4500 Fuel Injection System Performance Holley Performance display
Sniper EFI Stealth 4500 Fuel Injection System Performance Holley Performance (bottom view)

Holley Performance

Holley Sniper EFI Stealth 4500 Fuel Injection System

Sale price$2,089.95
SKU: HOL-550-842
Quantity:

Holley Sniper EFI Stealth 4500 Fuel Injection System

MCQUEEN

190 South McQueen Road
Suite 109
Gilbert AZ 85233
United States

+14806332929

The Sniper Stealth 4500 EFI System! Wanting to convert your Dragster or Pro-street vehicle to Fuel Injection? Look no further! The Sniper Stealth 4500 EFI system from Holley features 8, 100LB/HR Fuel Injectors capable of supporting 800 to 1500 HP naturally aspirated, or 800-1250 HP on forced induction applications. The Sniper Stealth 4500 also features multiple Input and Output options for sensor inputs and switched outputs to control external relays. This system also comes with a USB to CAN tuning cable and free downloadable Sniper EFI Software give you unlimited control of your engine

KEY FEATURES:

  • Supports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr Injectors
  • Compatible with Draw through or Blow through forced induction applications
  • 2.125” Throttle Plates, Flow 1440 CFM for large cubic inch engines
  • 2.5Bar MAP Sensor
  • Integrated ignition timing control
  • Programmable launch control via 2-step and timing retard. Both can be triggered by a trans-brake input
  • Gen 3 Ultra Dominator Style 4 Bolt Air Cleaner Flange
  • -8AN Fuel Inlets
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • Simple Calibration Wizard (Answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn
  • Built-in Single Stage Wet or Dry progressive nitrous control
  • Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure or other critical information
  • Six Programmable Ground Outputs, Five programmable ground inputs. These can be used to trigger or control external devices such as nitrous solenoids, boost control solenoids. Or to provide the ECU with an Input to turn on function such as an ignition timi
  • One +5v Reference Output - +5V Power Supply for 0-5v Sensors, One Sensor Ground – Ground supply for 0-5v Sensors
  • Throttle body mounted ECU – no extra boxes to mount
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Required external fuel pressure regulator, 12-848 is recommended
  • Customizable secondary fuel pump output (TPS, RPM or Boost enabled)
  • User friendly Boost Control with handheld adjustability
  • Free Software included comprehensive datalogging tool to help you maximize the performance of your engine
  • Real-time datalogging to the included 3.5” Touch Screen, allows you to save information to the SD card without needing a communication cable
  • Programmable Target Air Fuel Ratios per Boost level
  • Advanced boost control available via free Sniper EFI tuning software, including Boost vs RPM and Boost vs Time
  • OEM Style TPS/IAC, for years of dependable service
  • Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • Patent Pending

Shipping & Returns

SHIPPING POLICY
There is a chance that your cart will display no shipping charges. Certain items populate a standard shipping rate, others are advertised as free shipping to the lower 48, and others (often multiple parts or larger orders) may not show a rate. There is nothing more to do on your end if it is free or flat-rate shipping.

If your order does require a shipping cost/option, our shipping department will determine the shipping charges, and we will email you the cost/options for your order to ship out. Once you receive that email, there will be a link to pay for the charges, or you can cancel the order and be fully refunded.

OFFERS OF FREE SHIPPING:
All free ground shipping offers only apply to shipping addresses in the continental United States. This notification will appear above the product information and on the cart page.

FLAT RATE GROUND SHIPPING:
Some products have a standard ground shipping policy if you require the product faster, please notify us in the notes section during checkout.

If you have special shipping requirements, please contact our sales department. Email us help@sdhqoffroad.com

PROCESSING YOUR ORDER:
If shipping costs need to be calculated/added, you will be emailed with an updated link to your order. Your updated order will include your order's shipping costs and be your original order with the letter "A" at the end. While checking for updates on your order, please add an "A" to the end of your order number, as your order number without the "A" will show canceled since it has been superseded.

FIBERGLASS SHIPPING POLICY:
Our shipping department takes the same time and effort in packaging your products as our engineers do in designing them. However, damage can still occur in shipping. Most of these damaged items can be easily repaired during install and or in paint prep. If this is not the case, the buyer must inspect the packaging and the products carefully upon receiving them, then accept the shipment and if need be, notate any damages and irregularities, such as crushed, torn, punctured, or broken parts on both the packaging and the product, on the freight bill or receipt at the driver’s presence. A signed receipt without any notation releases the carrier as well as SDHQ from any further damage claim. Discovery of damages after a clear delivery becomes the responsibility of the customer. The buyer must notify SDHQ of any damages within 24 hours. In cases of damage with proper notion on receipt, the carrier will determine whether to pay for the repair cost or replacement value of the damaged goods after damage inspection. Replacement value is the amount the buyer paid to SDHQ and is not negotiable. All disputes about the settlement amount shall be addressed with the carrier. SDHQ, under no circumstances, shall be liable for the damaged product or for subsequent settlement of the claim with the carrier.

POWDER COATED ROCK SLIDERS SHIPPING POLICY: While we pack with care, we advise against shipping powder-coated sliders due to the risk of scuffs/scratches during transit. Any shipping-related damage isn't covered by SDHQ.

GOOSE GEAR SHIPPING POLICY: All Goose Gear products are made-to-order. Once your order is placed, it cannot be cancelled or refunded. By checking this box, you acknowledge and agree to these terms. Thank you for understanding the unique nature of our custom manufacturing process.

RETURNS:
Some items may be eligible to be returned if returned as new within 30 days of shipping, with a 20% re-stocking fee. If eligible for return, the return amount will be for store credit. There are NO returns after 30 days from the date of receipt. Freight is nonrefundable. Refunds will be given on parts only and exclude labor or installation charges, shipping, or any other charges. All parts must be returned in the original package, cannot be damaged or installed, and must be in original condition.

For further info on our return policy, please visit the Online order returns page.

Shipping & Returns

SHIPPING POLICY
There is a chance that your cart will display no shipping charges. Certain items populate a standard shipping rate, others are advertised as free shipping to the lower 48, and others (often multiple parts or larger orders) may not show a rate. There is nothing more to do on your end if it is free or flat-rate shipping.

If your order does require a shipping cost/option, our shipping department will determine the shipping charges, and we will email you the cost/options for your order to ship out. Once you receive that email, there will be a link to pay for the charges, or you can cancel the order and be fully refunded.

OFFERS OF FREE SHIPPING:
All free ground shipping offers only apply to shipping addresses in the continental United States. This notification will appear above the product information and on the cart page.

FLAT RATE GROUND SHIPPING:
Some products have a standard ground shipping policy if you require the product faster, please notify us in the notes section during checkout.

If you have special shipping requirements, please contact our sales department. Email us help@sdhqoffroad.com

PROCESSING YOUR ORDER:
If shipping costs need to be calculated/added, you will be emailed with an updated link to your order. Your updated order will include your order's shipping costs and be your original order with the letter "A" at the end. While checking for updates on your order, please add an "A" to the end of your order number, as your order number without the "A" will show canceled since it has been superseded.

FIBERGLASS SHIPPING POLICY:
Our shipping department takes the same time and effort in packaging your products as our engineers do in designing them. However, damage can still occur in shipping. Most of these damaged items can be easily repaired during install and or in paint prep. If this is not the case, the buyer must inspect the packaging and the products carefully upon receiving them, then accept the shipment and if need be, notate any damages and irregularities, such as crushed, torn, punctured, or broken parts on both the packaging and the product, on the freight bill or receipt at the driver’s presence. A signed receipt without any notation releases the carrier as well as SDHQ from any further damage claim. Discovery of damages after a clear delivery becomes the responsibility of the customer. The buyer must notify SDHQ of any damages within 24 hours. In cases of damage with proper notion on receipt, the carrier will determine whether to pay for the repair cost or replacement value of the damaged goods after damage inspection. Replacement value is the amount the buyer paid to SDHQ and is not negotiable. All disputes about the settlement amount shall be addressed with the carrier. SDHQ, under no circumstances, shall be liable for the damaged product or for subsequent settlement of the claim with the carrier.

POWDER COATED ROCK SLIDERS SHIPPING POLICY: While we pack with care, we advise against shipping powder-coated sliders due to the risk of scuffs/scratches during transit. Any shipping-related damage isn't covered by SDHQ.

GOOSE GEAR SHIPPING POLICY: All Goose Gear products are made-to-order. Once your order is placed, it cannot be cancelled or refunded. By checking this box, you acknowledge and agree to these terms. Thank you for understanding the unique nature of our custom manufacturing process.

RETURNS:
Some items may be eligible to be returned if returned as new within 30 days of shipping, with a 20% re-stocking fee. If eligible for return, the return amount will be for store credit. There are NO returns after 30 days from the date of receipt. Freight is nonrefundable. Refunds will be given on parts only and exclude labor or installation charges, shipping, or any other charges. All parts must be returned in the original package, cannot be damaged or installed, and must be in original condition.

For further info on our return policy, please visit the Online order returns page.

Quality

We pride ourselves on offering only top-tier products, handpicked through strategic partnerships with the industry's elite.

When you choose us, you're investing in unparalleled quality and craftsmanship.

Learn more about what 'SDHQ Built' means to us here.

Quality

We pride ourselves on offering only top-tier products, handpicked through strategic partnerships with the industry's elite.

When you choose us, you're investing in unparalleled quality and craftsmanship.

Learn more about what 'SDHQ Built' means to us here.

Secure Payment

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

We accept payments with :
Visa, MasterCard, Shop Pay, PayPal, Apple Pay, Discover and more.

Secure Payment

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

We accept payments with :
Visa, MasterCard, Shop Pay, PayPal, Apple Pay, Discover and more.

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