Is this product covered by an authentic manufacturer warranty?

Yes. All items cataloged by WowShopper Motorsports are sourced directly through authorized manufacturer distribution channels with verified factory part numbers and full OEM warranty coverage.

Vance & Hines

VANCE & HINES Fuelpak FP4 & FPX Wireless Bluetooth EFI Autotuners

SAVE 2%

Photo 1 of 1 | Click to Enlarge

VANCE & HINES Fuelpak FP4 & FPX Wireless Bluetooth EFI Autotuners - View 1

Product OverviewOEM Verified Specifications

Precision electronic fuel management is the critical differentiator between a stock Harley-Davidson and a high-performance machine, and the Vance & Hines Fuelpak FP4 and FPX systems deliver race-grade calibration directly to your smartphone. Designed specifically for the Milwaukee-Eight, Twin Cam, and Sportster platforms, these Bluetooth-enabled autotuners bypass the limitations of fixed factory maps by allowing riders to generate custom fuel and ignition curves in real-time. By leveraging live telemetry data, the system automates the map generation process, ensuring that air-fuel ratios remain optimal across the entire RPM range, which is essential for maximizing torque delivery and protecting engine components during aggressive riding or after installing high-flow exhaust systems.

The core engineering advantage of the Fuelpak series lies in its ability to optimize gas flow dynamics and scavenging efficiency through precise electronic control rather than mechanical restriction. Unlike static tuning methods, the FP4 and FPX units continuously monitor engine parameters to adjust fueling instantly, effectively eliminating the lean or rich conditions that typically plague aftermarket modifications. This dynamic adjustment ensures that the engine breathes freely without the penalty of backpressure-induced power loss, while the automated map generation process removes the guesswork from dyno tuning, delivering a consistent, repeatable power curve that maximizes throttle response and overall drivetrain efficiency.

Robust mechanical integration and durable construction ensure that these electronic components withstand the thermal and vibrational demands of daily street and track service. The units are engineered to fit seamlessly within the existing electrical architecture of Harley-Davidson models, maintaining strict mechanical fitment tolerance with factory frame and suspension clearances to prevent interference. Built with high-quality internal components designed for longevity, the Fuelpak systems provide a reliable, long-term solution for powersports enthusiasts who demand the stability and performance consistency of a professionally tuned engine without the recurring cost of manual recalibration.

Product Classification

Mechanical Replacement PartHARD PARTS > Ignition & Electrical > Mechanical Replacement Part

Unit / Package Weight

0.2 lbs (0.09 kg)

Discipline & Application

Hard Parts & Mechanical

$391.95

$399.95SAVE 2%

Available

Select Fitment / Application: FP4, 21-23 M-EIGHT - 66043 (Part #1020-3513)

Proceed to Checkout

Free US ShippingOrders over $150

30-Day ExchangesHassle-free size swap

Manufacturer WarrantyNot Available

Product OverviewOEM Verified Specifications

Product Classification

Mechanical Replacement PartHARD PARTS > Ignition & Electrical > Mechanical Replacement Part

Unit / Package Weight

0.2 lbs (0.09 kg)

Discipline & Application

Hard Parts & Mechanical

Vance & Hines Technical Performance & Engineering

Key engineered features, technical highlights, and manufacturer specifications

Authentic Specifications

Safety & Protection (5)

OEM Technical Standards

Precision electronic fuel management is the critical differentiator between a stock Harley-Davidson and a high-performance machine, and the Vance & Hines Fuelpak FP4 and FPX systems deliver race-grade calibration directly to your smartphone.: Designed specifically for the Milwaukee-Eight, Twin Cam, and Sportster platforms, these Bluetooth-enabled autotuners bypass the limitations of fixed factory maps by allowing riders to generate custom fuel and ignition curves in real-time.
By leveraging live telemetry data, the system automates the map generation process, ensuring that air-fuel ratios remain optimal across the entire RPM range, which is essential for maximizing torque delivery and protecting engine components during aggressive riding or after installing high-flow exhaust systems.
The core engineering advantage of the Fuelpak series lies in its ability to optimize gas flow dynamics and scavenging efficiency through precise electronic control rather than mechanical restriction.: Unlike static tuning methods, the FP4 and FPX units continuously monitor engine parameters to adjust fueling instantly, effectively eliminating the lean or rich conditions that typically plague aftermarket modifications.
This dynamic adjustment ensures that the engine breathes freely without the penalty of backpressure-induced power loss, while the automated map generation process removes the guesswork from dyno tuning, delivering a consistent, repeatable power curve that maximizes throttle response and overall drivetrain efficiency.
Built with high-quality internal components designed for longevity, the Fuelpak systems provide a reliable, long-term solution for powersports enthusiasts who demand the stability and performance consistency of a professionally tuned engine without the recurring cost of manual recalibration.

Materials & Construction (1)

OEM Technical Standards

Robust mechanical integration and durable construction ensure that these electronic components withstand the thermal and vibrational demands of daily street and track service.: The units are engineered to fit seamlessly within the existing electrical architecture of Harley-Davidson models, maintaining strict mechanical fitment tolerance with factory frame and suspension clearances to prevent interference.

Additional Features & Specifications (1)

OEM Technical Standards

Authentic Vance & Hines Fuelpak FP4 and FPX smartphone-controlled Bluetooth EFI autotuning systems for Harley-Davidson Milwaukee-Eight, Twin Cam, and Sportster models featuring live telemetry and automated map generation

End of Product Information

Complete Your Setup

Frequently Paired Accessories & Tools

BOLT

BOLT Euro Style Chain Slider Bushings

BANKS

BANKS EXTREME HUSKY HAULER

SUPERCLAMP

SUPERCLAMP Super-Glides II

KOLPIN

KOLPIN Lock-It-Rite ATV/UTV Truck Receiver System

KOLPIN

KOLPIN Lock-It-Rite ATV/UTV Trailer System

SUPERCLAMP

SUPERCLAMP Super-Glide Edge Rail Trim Kit

SUPERCLAMP

SUPERCLAMP Super-Glides II Screw Kit

HELIX

HELIX 100 Pack Cable Ties - White

Loading Product Details...

Factory Technical Reference

Verified Workshop Blueprints & Maintenance Specs

Explore All 122 Verified Workshop Platforms →

Servicing your machine? Cross-reference factory torque values, fluid capacities, chain pitches, and tire pressures directly from certified workshop service manuals before installation.

1-CLICK SERVICE BUNDLES38 Verified Motorcycle Platforms

Need a Complete Direct-Fit Maintenance Kit for Your Bike?

Factory-calibrated oil change packs, spark plug kits, and hydraulic brake flush bundles pre-measured to OEM workshop manuals.

Explore Service Bundles→

Harley-Davidson · 2017–2024

Road Glide / Street Glide M8

Milwaukee-Eight 107/114/117ci

4.0 qt 20W-50 | Formula+ Primary | 80W-140 Trans

Yamaha · 2020–2025

Ténéré 700 (T7)

689cc CP2 Crossplane Twin

2.6 L 10W-40 | 525 Chain | 90/90-21 & 150/70R18

Honda · 2020–2025

CRF1100L Africa Twin

1084cc Unicam Parallel Twin

4.0L Manual / 4.2L DCT | SILMAR8A9S Iridium

Kawasaki · 2019–2025

Ninja ZX-6R (636)

636cc DOHC Inline-Four

3.6 L 10W-40 | 520 Chain (112L) | 127 N·m Axle

Polaris · 2019–2025

RZR XP 1000 / XP 4

999cc ProStar DOHC Twin

2.5 qt PS-4 5W-50 | AGL Trans | Demand Drive

Can-Am · 2018–2025

Maverick X3 Turbo / Turbo R

Rotax ACE 900cc Turbocharged

3.5 L 0W-40 | QRS-X CVT | 75W-140 Gearbox

Polaris · 2018–2025

General 1000 / XP 1000

999cc ProStar 100 HP Twin

2.5 qt PS-4 5W-50 | 122 N·m Lug | AGL Gearcase

Can-Am · 2020–2025

Defender HD10 / MAX

Rotax 976cc V-Twin 82 HP

2.2 L 5W-40 | 100 N·m Lug | PRO-TORQ CVT

Verified Technical Reference

Frequently Asked Questions

Consult the authentic option and part number matrix under the Technical Specifications and Fitment tab. You can match the authentic OEM Manufacturer Part Number (MPN) or ride model specifications to confirm exact compatibility.

Vance & Hines

VANCE & HINES Fuelpak FP4 & FPX Wireless Bluetooth EFI Autotuners

SAVE 2%

Photo 1 of 1 | Click to Enlarge

Product OverviewOEM Verified Specifications

Product Classification

Mechanical Replacement PartHARD PARTS > Ignition & Electrical > Mechanical Replacement Part

Unit / Package Weight

0.2 lbs (0.09 kg)

Discipline & Application

Hard Parts & Mechanical

$391.95

$399.95SAVE 2%

Available

Select Fitment / Application: FP4, 21-23 M-EIGHT - 66043 (Part #1020-3513)

Proceed to Checkout

Free US ShippingOrders over $150

30-Day ExchangesHassle-free size swap

Manufacturer WarrantyNot Available

Product OverviewOEM Verified Specifications

Product Classification

Mechanical Replacement PartHARD PARTS > Ignition & Electrical > Mechanical Replacement Part

Unit / Package Weight

0.2 lbs (0.09 kg)

Discipline & Application

Hard Parts & Mechanical

Vance & Hines Technical Performance & Engineering

Key engineered features, technical highlights, and manufacturer specifications

Authentic Specifications

Safety & Protection (5)

OEM Technical Standards

Precision electronic fuel management is the critical differentiator between a stock Harley-Davidson and a high-performance machine, and the Vance & Hines Fuelpak FP4 and FPX systems deliver race-grade calibration directly to your smartphone.: Designed specifically for the Milwaukee-Eight, Twin Cam, and Sportster platforms, these Bluetooth-enabled autotuners bypass the limitations of fixed factory maps by allowing riders to generate custom fuel and ignition curves in real-time.
By leveraging live telemetry data, the system automates the map generation process, ensuring that air-fuel ratios remain optimal across the entire RPM range, which is essential for maximizing torque delivery and protecting engine components during aggressive riding or after installing high-flow exhaust systems.
The core engineering advantage of the Fuelpak series lies in its ability to optimize gas flow dynamics and scavenging efficiency through precise electronic control rather than mechanical restriction.: Unlike static tuning methods, the FP4 and FPX units continuously monitor engine parameters to adjust fueling instantly, effectively eliminating the lean or rich conditions that typically plague aftermarket modifications.
This dynamic adjustment ensures that the engine breathes freely without the penalty of backpressure-induced power loss, while the automated map generation process removes the guesswork from dyno tuning, delivering a consistent, repeatable power curve that maximizes throttle response and overall drivetrain efficiency.
Built with high-quality internal components designed for longevity, the Fuelpak systems provide a reliable, long-term solution for powersports enthusiasts who demand the stability and performance consistency of a professionally tuned engine without the recurring cost of manual recalibration.

Materials & Construction (1)

OEM Technical Standards

Robust mechanical integration and durable construction ensure that these electronic components withstand the thermal and vibrational demands of daily street and track service.: The units are engineered to fit seamlessly within the existing electrical architecture of Harley-Davidson models, maintaining strict mechanical fitment tolerance with factory frame and suspension clearances to prevent interference.

Additional Features & Specifications (1)

OEM Technical Standards

Authentic Vance & Hines Fuelpak FP4 and FPX smartphone-controlled Bluetooth EFI autotuning systems for Harley-Davidson Milwaukee-Eight, Twin Cam, and Sportster models featuring live telemetry and automated map generation