Ignitions and Electrical› Computers, Chips, Modules and Programmers

Haltech

Nexus S3 ECU

$2,590.00

SKU: HT-213306

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In Stock
Ships by Aug 1
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The Haltech Nexus S3 ECU with Plug-and-Play Adapter Harness is engineered as a direct replacement for your vehicle's factory ECU. This unit features a set of factory connectors that interface directly with your existing harness, simplifying installation. It offers advanced capabilities including Flex Fuel compatibility, multi-fuel support, and an integrated data logger. Haltech products are intended for sanctioned off-road/competition use in non-emissions-controlled vehicles and should not be used on public roads.

MIA's Description

The Haltech Nexus S3 ECU is a computer and programmer designed for direct plug-and-play replacement of the factory ECU. It is compatible with manual transmissions only.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHaltech
Part NumberHT-213306
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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