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HOLLEY Terminator X MPFI Kit GM LS Early Truck 550-904T
SKU: HLY550-904T
Product information
Weight8.65 lbs
Dimensions12.2 × 11.5 × 7.8 in
Product Line
EFI Terminator X

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
1 Bar

Self Tuning
Yes

Details...
Original price was: $1,540.00.Current price is: $1,399.95.Add to cart

Original price was: $1,540.00.Current price is: $1,399.95.
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HOLLEY Terminator X MPFI Kit Early LS Truck 550-904
SKU: HLY550-904
Product information
Weight8.9 lbs
Dimensions12.3 × 11.5 × 7.7 in
Product Line
EFI Terminator X

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
1 Bar

Self Tuning
Yes

Details...
Original price was: $1,650.00.Current price is: $1,499.95.Add to cart

Original price was: $1,650.00.Current price is: $1,499.95.
Quantity Only 8 left in stock!
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HOLLEY Terminator X MPFI GM LS1/LS6 550-903T
SKU: HLY550-903T
Product information
Weight8.65 lbs
Dimensions12.1 × 11.3 × 7.4 in
Product Line
EFI Terminator X

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
1 Bar

Self Tuning
Yes

Details...
Original price was: $1,540.00.Current price is: $1,399.95.Add to cart

Original price was: $1,540.00.Current price is: $1,399.95.
Quantity Only 2 left in stock!
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HOLLEY Engine Management System Terminator X 550-903
SKU: HLY550-903
Product information
Weight9 lbs
Dimensions12.3 × 11.3 × 7.6 in
Product Line
EFI Terminator X

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
1 Bar

Self Tuning
Yes

Details...
Original price was: $1,650.00.Current price is: $1,499.95.Add to cart

Original price was: $1,650.00.Current price is: $1,499.95.
Quantity Only 8 left in stock!
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HOLLEY Dominator EFI Kit – LS2 w/Trans Contr & DBW 550-660
SKU: HLY550-660
Product information
Weight17.76 lbs
Dimensions26.8 × 15.1 × 10 in
Product Line
Dominator EFI

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
7 Bar

Self Tuning
Yes

Details...
Original price was: $3,850.00.Current price is: $3,499.95.Add to cart

Original price was: $3,850.00.Current price is: $3,499.95.
Quantity Only 1 left in stock!
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HOLLEY Dominator EFI Kit – Ford w/COP 550-655
SKU: HLY550-655
Product information
Weight16.63 lbs
Dimensions26.9 × 15.3 × 9.9 in
Product Line
Dominator EFI

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
7 Bar

Self Tuning
Yes

Details...
Original price was: $3,685.00.Current price is: $3,349.95.Add to cart

Original price was: $3,685.00.Current price is: $3,349.95.
Quantity Only 1 left in stock!
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HOLLEY Dominator EFI Kit – Ford 550-653
SKU: HLY550-653
Product information
Weight15.23 lbs
Dimensions28 × 12 × 7 in
Product Line
Dominator EFI

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
7 Bar

Self Tuning
Yes

Details...
Original price was: $3,465.00.Current price is: $3,149.95.Add to cart

Original price was: $3,465.00.Current price is: $3,149.95.
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HOLLEY Dominator EFI Kit – Universal 550-652
SKU: HLY550-652
Product information
Weight16.03 lbs
Dimensions27 × 15 × 10 in
Product Line
Dominator EFI

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
7 Bar

Self Tuning
Yes

Details...
Original price was: $3,465.00.Current price is: $3,149.95.Add to cart

Original price was: $3,465.00.Current price is: $3,149.95.
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HOLLEY Dominator EFI Kit – LS2/LS3 Late Truck 550-651
SKU: HLY550-651
Product information
Weight12.7 lbs
Dimensions26.8 × 15.3 × 9.9 in
Product Line
Dominator EFI

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
7 Bar

Self Tuning
Yes

Details...
Original price was: $3,465.00.Current price is: $3,149.95.Add to cart

Original price was: $3,465.00.Current price is: $3,149.95.
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HOLLEY Dominator EFI Kit – GM LS 550-650
SKU: HLY550-650
Product information
Weight16.13 lbs
Dimensions27 × 15 × 10.1 in
Product Line
Dominator EFI

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
7 Bar

Self Tuning
Yes

Details...
Original price was: $3,465.00.Current price is: $3,149.95.Add to cart

Original price was: $3,465.00.Current price is: $3,149.95.
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HOLLEY HP ECU & Harness – Ford MPFI NTK 550-606N
SKU: HLY550-606N
Product information
Weight11 lbs
Dimensions12.4 × 11.4 × 7.9 in
Product Line
HP EFI

Wiring Harness Included
Yes

Map Sensor Included
Yes

Map Sensor Style
5 Bar

Self Tuning
Yes

Details...
Original price was: $3,157.00.Current price is: $2,869.95.Add to cart

Original price was: $3,157.00.Current price is: $2,869.95.
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HOLLEY ECU & Wire Harness Unterminated 550-605
SKU: HLY550-605
Product information
Weight16.2 lbs
Dimensions25 × 12 × 7.3 in
Product Line
HP EFI

Map Sensor Included
Yes

Self Tuning
Yes

User Tunable
Yes

Timing Control
Yes

Details...
Original price was: $2,871.00.Current price is: $2,609.95.Add to cart

Original price was: $2,871.00.Current price is: $2,609.95.
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HOLLEY HP ECU & Harness MPFI – NTK 550-604N
SKU: HLY550-604N
Product information
Weight10.75 lbs
Dimensions12.5 × 11.4 × 7.9 in
Product Line
HP EFI

Map Sensor Included
Yes

Self Tuning
Yes

User Tunable
Yes

Timing Control
Yes

Details...
Original price was: $3,157.00.Current price is: $2,869.95.Add to cart

Original price was: $3,157.00.Current price is: $2,869.95.
Quantity Only 3 left in stock!
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HOLLEY ECU & Harness MPFI Kit 550-604
SKU: HLY550-604
Product information
Weight10.7 lbs
Dimensions12.3 × 12.3 × 8.4 in
Product Line
HP EFI

Map Sensor Included
Yes

Self Tuning
Yes

User Tunable
Yes

Timing Control
Yes

Details...
Original price was: $2,871.00.Current price is: $2,609.95.Add to cart

Original price was: $2,871.00.Current price is: $2,609.95.
Quantity Only 4 left in stock!
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HOLLEY ECU & Wiring Harness LS2 550-603
SKU: HLY550-603
Product information
Weight11.15 lbs
Dimensions12.5 × 11.5 × 7.8 in
Product Line
HP EFI

Map Sensor Included
Yes

Self Tuning
Yes

User Tunable
Yes

Timing Control
Yes

Details...
Original price was: $2,992.00.Current price is: $2,719.95.Add to cart

Original price was: $2,992.00.Current price is: $2,719.95.
Quantity Only 3 left in stock!
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HOLLEY HP ECU & Harness LS1/LS6 NTK 550-602N
SKU: HLY550-602N
Product information
Weight10.705 lbs
Dimensions12.6 × 11.9 × 8.05 in
Product Line
HP EFI

Map Sensor Included
Yes

Self Tuning
Yes

User Tunable
Yes

Timing Control
Yes

Details...
Original price was: $3,267.00.Current price is: $2,969.95.Add to cart

Original price was: $3,267.00.Current price is: $2,969.95.
Quantity Only 1 left in stock!
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HOLLEY ECU & Wiring Harness LS1 550-602
SKU: HLY550-602
Product information
Weight10.7 lbs
Dimensions12.5 × 11.5 × 7.8 in
Product Line
HP EFI

Map Sensor Included
Yes

Self Tuning
Yes

User Tunable
Yes

Timing Control
Yes

Details...
Original price was: $2,992.00.Current price is: $2,719.95.Add to cart

Original price was: $2,992.00.Current price is: $2,719.95.
Quantity Only 2 left in stock!
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HOLLEY ECU & Harness Kit – GM TPI/Holley Stealth Ram 550-601
SKU: HLY550-601
Product information
Weight10.15 lbs
Dimensions12.3 × 11.5 × 7.9 in
Product Line
HP EFI

Map Sensor Included
Yes

Self Tuning
Yes

User Tunable
Yes

Timing Control
Yes

Details...
Original price was: $2,871.00.Current price is: $2,609.95.Add to cart

Original price was: $2,871.00.Current price is: $2,609.95.
Quantity Only 1 left in stock!
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HOLLEY Terminator X Max Ford 7.3L Godzilla Kit 550-1431
SKU: HLY550-1431
Product information
Weight14.995 lbs
Dimensions16.7 × 12.95 × 11.4 in
Product Line
Terminator X Max

Map Sensor Included
Yes

Self Tuning
Yes

User Tunable
Yes

Programmer Included
Yes

Details...
Original price was: $1,925.00.Current price is: $1,749.95.Add to cart

Original price was: $1,925.00.Current price is: $1,749.95.
Quantity Only 3 left in stock!
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HOLLEY EFI Terminator X Max Sys 2013- Up Gen III Hemi 550-1425
SKU: HLY550-1425
Product information
Weight8 lbs
Dimensions14 × 12.25 × 9.5 in
Product Line
EFI Terminator X Max

Map Sensor Included
Yes

Self Tuning
Yes

User Tunable
Yes

Programmer Included
Yes

Details...
Original price was: $2,530.00.Current price is: $2,299.95.Add to cart

Original price was: $2,530.00.Current price is: $2,299.95.
Quantity Only 4 left in stock!
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Frequently Asked Questions

What sets Wheel Front Shop apart from the rest?

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.

How fast do we process backorders for auto parts?

We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 10-14 days. Shop with Confidence Commitment: If we cannot fulfill your backorder within 30 days, Wheel Front will issue a full refund—no hidden fees, no hassle, and no questions asked. Because your trust matters, we're committed to making every purchase simple, transparent, and worry-free.

Why Choose Our International Shipping?

We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.

How long does shipping take?

Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%

Can I track my order?

Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.

Do you have my product in stock?

Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.

My goods arrived damaged, what should I do?

We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.

How do I return an order?

You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

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Your vehicle. Your exact fitment. Performance parts from the brands you trust.