Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
For Your Every Summer RSVP, with Code: SUMMER15
Description
Holley Sniper Stealth 4150 - BlackHolley Sniper Stealth 4150 Black Supports Up To 650HP 3. 5 in. Handheld Monitor Carburetor Styling Return Fuel System Overview Holley's Sniper Stealth 4150 Master Kit gives you carburetor styling but functions just like the Sniper! A 4150 stealth is a great way to upgrade your ride to fuel injection in a cost efficient way with just 4 simple connections required. Take your build to the next level and take advantage of improved engine performance,
Holley Sniper Stealth 4150 - BlackSupports Up To 650HP - 3.5 in. Handheld Monitor - Carburetor Styling - Return Fuel System
Overview
Holley's Sniper Stealth 4150 Master Kit gives you carburetor styling but functions just like the Sniper! A 4150 stealth is a great way to upgrade your ride to fuel injection in a cost-efficient way with just 4 simple connections required. Take your build to the next level and take advantage of improved engine performance, better MPG's and easier starting. This kit supports up to 650hp naturally aspirated and 600hp boosted with Four 100 Lb/Hr injectors! You don't have to be a computer wiz or tuning professional to run a sniper kit on your build. Simplicity is what we strive for! Our calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. Use the high resolution 3.5" full color touchscreen for tuning and gauge displays. The stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications. The 4150 includes a complete fuel system consisting of all necessary hardware to return fuel into your tank. Additionally, you're getting a 4.9 wideband oxygen sensor with a leak free oxygen sensor, oem style TPS/IAC, fuel pressure regulator, all Stainless Steel T-Bolt clamps and a Stainless Steel weldable flange. Once you made your conversion to EFI, don't stop there! Sniper is an Ecosystem! This kit pair's seamlessly together with Holley's Sniper Hyperspark Ignition, Fuel System's, Air Cleaners, Throttle Body Digital Dash to unlock the full potential of your build. Part # 34-42 is required for a bolt-in installation.
Part # 534-247 is required to complete installation.
Features:
- Bolt on 4150 Flange Carburetor Replacement
- Self-tuning ECU means you don??????t have to be a computer/tuning wiz to have EFI!
- 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!
- Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition RPM)
- High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
- Throttle body mounted ECU ???? no extra boxes to mount
- Supports up to 650hp with Four 100 Lb/Hr Injectors!
- All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
- Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.
- Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
- External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886.
- Integrated ignition timing control
- The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
- OEM Style TPS/IAC, for years of dependable service.
- Included clamp-on oxygen sensor kit for 2.25" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
- Available in 3 finishes: Shiny, Black and coming soon, Gold
Details:
- CFM: 870
- Finish: Black
- Flange Style: 4150
- Fuel Pressure: 58.5 PSI
- Injector Size: 100 lb/hr @ 58.5 PSI
- Inlet / Outlet Size: 3/4-16 Female O-Ring (AN 8)
- MAP Sensor: 2Bar
- Max Horsepower Rating: 650 Naturally Aspirated
- Model: 4150 EFI Conversion Throttle Body
- Transmission: 700R4/200R4
- Transmission: Ford C4/C6
- Transmission: TH350
Links
Instruction Sheet
Instruction Sheet
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.9 ★★★★★
Based on 1976 reviews
Sort
Product Reviews
★★★★★ 5
Get it fluffy cozy
Color: Grey, Size: Throw Size - 50" X 60"
Great quality looks good as a accent to a bed ensemble
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025
★★★★★ 5
THE BEST, LEGIT FLUFFY
Color: Black, Size: Queen/King Size - 80" X 90"
This is exactly what I wanted, had to return two other blankets before I found this one. It is SO FLUFFY and soft! The pile is almost 3” long.. it is so fluffy I keep losing my remote control on it. So 5 stars I will continue to buy this blanket for every bedroom in my house we are all girls and we all love big fluffy blankies!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
★★★★★ 5
Cute soft and cuddly
So soft, cute and cuddly. The quality of softness and materials used are amazing. It’s light weight and fluffy but not thin. The size is perfect for cuddling. Not small sized. Gifted this to my mother for her birthday. She loves it says it’s so soft on her skin. Don’t imagine I would have an issue with washing or drying. Price was awesome and definitely would purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2025
★★★★★ 5
Great gift.
Perfect Mother’s Day gift or Christmas present. It’s one of them hearted gifts that can become very emotional. The size was just right the length the width, description was well thank you
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
★★★★★ 5
Soft buttersoft & light.
A+ fast shipping product exactly as described thank you.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025