DIYAutoTune.com

What DIYAutoTune.com does

DIYAutoTune.com is a US-based manufacturer and retailer of standalone engine management systems for the automotive performance aftermarket. Founded in 2004 and headquartered in Gainesville, Georgia, the company designs and produces its own ECUs, ignition systems, and digital dashes under three sub-brands (AMP EFI, MaxSpark Ignition, and Digital Dash EFI), and distributes the MegaSquirt product line and partner-branded sensors, wideband controllers, wiring harnesses, and accessories from manufacturers including 14point7, Innovate Motorsports, Low Doller Motorsports, MRT Engineering, and Funk Motorsports. The core technology is MegaSquirt-compatible standalone engine management hardware, including wire-in ECUs (MS3Pro EVO+, MS3Pro EVO+ HC, MS3Pro Mini), plug-and-play variants for specific vehicle platforms (MSPNP-Pro, MSPNP2 Gen 2), accessory modules (QuadSpark, AMP Wideband Controller, QuadEGT, AXM modules, Drive-By-Wire controller), transmission controllers for GM 4L60E/4L80E automatics, and CAN-bus-integrated 10.3" and 12.3" digital instrument clusters that pair with MegaSquirt ECUs through TunerStudio tuning software.

Revenue is generated through one-time hardware sales across individual SKUs ranging from $324.99 (MicroSquirt V3.0) to $2,399.99 (Coyote PNP Harness & MS3Pro EVO+ HC Package), with pricing on a per-unit basis rather than subscription, plus modest service revenue from a $75 RMA diagnostic fee and Premium Tech Support packages targeting secondhand product owners. Go-to-market combines a direct-to-consumer Shopify storefront with same-day shipping (orders pre-12PM EST) and free shipping over $799, alongside a tiered authorized dealer program (Jobber / Dealer / Wholesaler) offering up to 30% off and a MAP pricing policy. The company ships to 40+ countries with localized currency. Customer segments are primarily DIY automotive enthusiasts and performance builders, professional tuners and race teams, an authorized dealer/reseller network, and entry-level EFI converters entering electronic fuel injection for the first time.

Operations remain scaled to a small team (1–10 employees) with no external funding, no disclosed revenue, no AI or machine-learning capabilities, and no M&A activity. The moat derives from two decades of accumulated firmware, base tunes, and technical documentation; lock-in to the MegaSquirt / TunerStudio ecosystem; proprietary PNP harness designs; and a protected dealer channel.

Name

DIYAutoTune.com

Legal name

DIYAutoTune

Website

https://diyautotune.com

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

1–10 employees

Short description

DIYAutoTune.com designs, manufactures, and retails standalone engine management systems, digital dashes, ignition systems, and sensors for DIY automotive enthusiasts, professional tuners, and resellers under its AMP EFI, MaxSpark, Digital Dash EFI, and MegaSquirt-compatible product lines.

Ownership category

akta.pro rank

Product category

Automotive Engine Management Systems

NAICS

Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Relay and Industrial Control Manufacturing (335314), Automotive Parts and Accessories Retailers (44133)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Automotive ECUs/Control Modules & Embedded Electronics Manufacturing (IMACAJAC)

akta.pro secondary industries

Automotive Infotainment, Telematics & Connectivity Hardware Manufacturing (TCU/V2X/GNSS) (IMACAJAH), Automotive Electric Motors & Actuators Manufacturing (EPS/Brake-by-wire/Seat/Window) (IMACAJAL)

Keywords

• Standalone engine management
• MegaSquirt ECU systems
• Automotive performance electronics
• Electronic fuel injection
• Plug-and-play ECUs

Headquarters

HQ city

Gainesville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Technology or R&D, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. ECU and Engine Management Hardware Sales: Primary revenue stream from selling standalone ECUs (AMP EFI, MS3Pro, MSPNP, MegaSquirt), wire-in and plug-and-play variants, ranging from $324.99 MicroSquirt to $2,399.99 MS3Pro EVO+ HC packages.
2. Digital Dash and Display Systems: Sales of Pro Dash and Standard Dash digital instrument clusters and accessories, priced from $699.99 to $1,124.99.
3. Ignition and Sensor Components: Sales of MaxSpark ignition kits, ignition coils, and various sensors (EGT, MAP, pressure, temperature, wideband, crank/cam).
4. Wiring and Connection Solutions: Harnesses, connector pigtails, power distribution components, and wiring accessories for EFI installations.
5. Support and Service Fees: RMA Service at $75 for product evaluation/diagnostics and Premium Tech Support packages for secondhand product owners.
6. Refurbished Products: Refurbished ECUs and transmission controllers at discounted prices, providing entry point for budget customers.
7. Dealer Program Revenue: B2B sales through dealer network with tiered pricing (up to 30% off for wholesalers), requiring minimum stocking orders of $2,500-$25,000.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels8 records

Core offering

DIYAutoTune.com designs, manufactures, and sells standalone engine management systems (ECUs), ignition systems, digital dashboard displays, and supporting sensors for automotive performance applications. The company sells its in-house brands (AMP EFI, MaxSpark Ignition, Digital Dash EFI) directly to consumers and through an authorized dealer network, specializing in MegaSquirt-compatible products for engine swaps, EFI conversions, and performance tuning.

Product overview

DIYAutoTune.com is a manufacturer and retailer of standalone engine management systems and related performance automotive electronics. The product portfolio centers on MegaSquirt-compatible ECUs (MS3Pro, MSPNP-Pro, MSPNP2, Classic MegaSquirt, MicroSquirt) as both wire-in universal units and vehicle-specific plug-and-play configurations. Supporting products include Digital Dash EFI displays (Pro Dash and Standard Dash), MaxSpark ignition systems, wideband controllers, transmission controllers (4L60E/4L80E), and comprehensive sensor offerings (MAP, EGT, temperature, pressure, crank/cam). The company operates three in-house brands: AMP EFI (ECUs and controllers), MaxSpark Ignition (ignition systems), and Digital Dash EFI (instrument displays). DIYAutoTune serves as a distributor for third-party sensor brands (14point7, Innovate Motorsports, Low Doller Motorsports, MRT Engineering) and sells refurbished ECU units alongside new products.

Differentiator

Problem solved

Functional benefit

Brands

• AMP EFI: In-house brand for standalone engine management systems, plug-and-play ECUs, and EFI wiring solutions.
• MaxSpark Ignition
• Digital Dash EFI

Products and services

• MS3Pro EVO+ ECU High-performance wire-in engine control unit with advanced features including flex fuel support, CAN bus expansion, and programmable outputs for complex engine management in performance builds.
• MS3Pro EVO+ HC ECU High-current variant of the MS3Pro EVO+ ECU designed for high-output ignition coils and large injectors in high-performance forced induction applications.
• MS3Pro Mini ECU Compact wire-in ECU offering full MS3Pro functionality in a smaller form factor for space-constrained engine bay installations.
• MSPNP-Pro ECU Plug-and-play MegaSquirt ECU with vehicle-specific harnesses for BMW, Buick, Ford, Mazda, Subaru, and Toyota platforms, enabling drop-in EFI upgrades.
• MSPNP2 Gen 2 ECU Second-generation plug-and-play MegaSquirt ECU with improved processing and expanded vehicle coverage including BMW, Ford, Mazda, Nissan, Porsche, and Toyota applications.
• Classic MegaSquirt ECU Original MegaSquirt engine management system available in assembled or kit form, including MS3 and MS2 variants with MS3X expansion capability for TBI and MPFI systems.
• MicroSquirt ECU Compact ECU designed for smaller engines or budget-conscious installations, available in assembled or module form.
• AMP'd MicroSquirt ECU

Quantifiable outcome

• Same-day shipping for orders placed before 12PM EST
• +2 more outcomes

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

Feature9 records

Partnerships

Two partnerships are on record, tiered core.

• TunerStudio ( Bowling and Grippo)coreTechnology or IntegrationRecommended tuning software for all MegaSquirt ECUs. TunerStudio MS and TunerStudio Ultra are the required tuning platforms for MS2/Extra and MS3 variants. DIYAutoTune provides custom TunerStudio dashboards and configuration files.
• AMP Engine ManagementcoreStrategic or Co-development PartnerAMP Engine Management is the parent/affiliated company that develops the firmware and design for AMP EFI products including MS3Pro ECUs and MSPNP-Pro systems sold through DIYAutoTune. DIYAutoTune handles manufacturing at their Gainesville facility and distribution.

Scale indicators4 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• AEM Performance Electronics:
• Haltech: Haltech is a leading standalone ECU manufacturer (Elite, Nexus, etc.) serving the same DIY/professional tuner segment with comparable feature sets (flex fuel, boost control, drive-by-wire). Both companies target engine swap and EFI conversion customers across the same vehicle platforms.

Broad incumbents

• Holley Performance Products: Holley is the largest US aftermarket performance electronics consolidator, with Sniper, Terminator, HP, and Dominator EFI systems directly competing with DIYAutoTune's MS3Pro and AMP EFI product lines. Holley offers broader platform coverage and OEM-style marketing budgets that DIYAutoTune cannot match.

Market position

Strengths2 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@DIYAutoTune
• Facebookfacebook.com/diyautotune
• Instagraminstagram.com/diyautotune
• Xx.com/diyautotune
• LinkedInlinkedin.com/company/diyautotune

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about DIYAutoTune.com