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Engine Management

Engine Management

Engine Management

Shop engine management for better engine control, tuning flexibility, ignition performance and drivability in performance-focused builds.

Nexus S2 Plug 'n' Play Adapter Harness Kit - Honda OBD-I

Haltech
$3,205.00 - $3,205.00
$3,205.00
$3,205.00 - $3,205.00
$3,205.00

ECU OVERVIEW Haltech's Nexus S2 is the successor to the acclaimed Elite 1500, offering a serious upgrade in performance and functionality. The S2 c...

View full details
$3,205.00 - $3,205.00
$3,205.00
$3,205.00 - $3,205.00
$3,205.00

Nexus S3 Plug 'n' Play Adapter Harness Kit - Honda OBD-I

Haltech
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

ECU OVERVIEW Haltech's Nexus S3 is the successor to the acclaimed Elite 2500, offering a serious upgrade in performance and functionality. The S3 c...

View full details
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

Elite 1000/1500 Honda OBD-I B-Series Plug 'n' Play Adaptor Harness

Haltech
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug'n'Play Adaptor Kits. These adaptors plug directly...

View full details
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

Nexus S3 Plug 'n' Play Adapter Harness Kit - Honda DC5

Haltech
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

ECU OVERVIEW Haltech's Nexus S3 is the successor to the acclaimed Elite 2500, offering a serious upgrade in performance and functionality. The S3 c...

View full details
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

Nexus S2/S3 Plug 'n' Play Adapter Harness Honda DC5

Haltech
$780.00 - $780.00
$780.00
$780.00 - $780.00
$780.00

If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug 'n' Play Adapter Kits. These adapters plug direct...

View full details
$780.00 - $780.00
$780.00
$780.00 - $780.00
$780.00

Elite 1000/1500 Honda Integra DC5 Plug 'n' Play Adaptor Harness

Haltech
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug'n'Play Adaptor Kits. These adaptors plug directly...

View full details
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

Nexus S2 Plug 'n' Play Adapter Harness Kit - Honda EP3

Haltech
$3,205.00 - $3,205.00
$3,205.00
$3,205.00 - $3,205.00
$3,205.00

ECU OVERVIEW Haltech's Nexus S2 is the successor to the acclaimed Elite 1500, offering a serious upgrade in performance and functionality. The S2 c...

View full details
$3,205.00 - $3,205.00
$3,205.00
$3,205.00 - $3,205.00
$3,205.00

Nexus S3 Plug 'n' Play Adapter Harness Kit - Honda EP3

Haltech
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

ECU OVERVIEW Haltech's Nexus S3 is the successor to the acclaimed Elite 2500, offering a serious upgrade in performance and functionality. The S3 c...

View full details
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

Nexus S2/S3 Plug 'n' Play Adapter Harness Honda EP3

Haltech
$780.00 - $780.00
$780.00
$780.00 - $780.00
$780.00

If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug 'n' Play Adapter Kits. These adapters plug direct...

View full details
$780.00 - $780.00
$780.00
$780.00 - $780.00
$780.00

Elite 1000/1500 Honda Civic EP3 Plug 'n' Play Adaptor Harness

Haltech
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug'n'Play Adaptor Kits. These adaptors plug directly...

View full details
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

Elite 1500 Mazda 13B S4/5 CAS with Flying Lead Ignition Terminated Harness

Haltech
$1,591.00 - $1,591.00
$1,591.00
$1,591.00 - $1,591.00
$1,591.00

The fastest and most cost effective way to wire your race car or engine conversion! Simply connect a handful of labelled wires and this plug and Pl...

View full details
$1,591.00 - $1,591.00
$1,591.00
$1,591.00 - $1,591.00
$1,591.00

Nexus S3 Plug 'n' Play Adapter Harness Kit - Mazda RX7 FD S6

Haltech
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

ECU OVERVIEW Haltech's Nexus S3 is the successor to the acclaimed Elite 2500, offering a serious upgrade in performance and functionality. The S3 c...

View full details
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

Nexus S2 Plug 'n' Play Adapter Harness Kit - Mazda RX7 FD S6

Haltech
$3,205.00 - $3,205.00
$3,205.00
$3,205.00 - $3,205.00
$3,205.00

ECU OVERVIEW Haltech's Nexus S2 is the successor to the acclaimed Elite 1500, offering a serious upgrade in performance and functionality. The S2 c...

View full details
$3,205.00 - $3,205.00
$3,205.00
$3,205.00 - $3,205.00
$3,205.00

Nexus S2/S3 Plug 'n' Play Adapter Harness Mazda RX7 FD S6

Haltech
$780.00 - $780.00
$780.00
$780.00 - $780.00
$780.00

If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug 'n' Play Adapter Kits. These adapters plug direct...

View full details
$780.00 - $780.00
$780.00
$780.00 - $780.00
$780.00

Elite 1000-2500 Mazda RX7 FD3S-S6 Plug 'n' Play Adaptor Harness

Haltech
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug'n'Play Adaptor Kits. These adaptors plug directly...

View full details
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

Nexus S3 Plug 'n' Play Adapter Harness Kit - Mazda RX7 FD S7 & 8

Haltech
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

ECU OVERVIEW Haltech's Nexus S3 is the successor to the acclaimed Elite 2500, offering a serious upgrade in performance and functionality. The S3 c...

View full details
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

Elite 1500 Mazda 13B S6-8 CAS with Flying Lead Ignition Terminated Harness

Haltech
$1,602.00 - $1,602.00
$1,602.00
$1,602.00 - $1,602.00
$1,602.00

The fastest and most cost effective way to wire your race car or engine conversion! Simply connect a handful of labelled wires and this plug and Pl...

View full details
$1,602.00 - $1,602.00
$1,602.00
$1,602.00 - $1,602.00
$1,602.00

Nexus S2 Plug 'n' Play Adapter Harness Kit - Mazda RX7 FD S7 & 8

Haltech
$3,205.00 - $3,205.00
$3,205.00
$3,205.00 - $3,205.00
$3,205.00

ECU OVERVIEW Haltech's Nexus S2 is the successor to the acclaimed Elite 1500, offering a serious upgrade in performance and functionality. The S2 c...

View full details
$3,205.00 - $3,205.00
$3,205.00
$3,205.00 - $3,205.00
$3,205.00

Nexus S2/S3 Plug 'n' Play Adapter Harness Mazda RX7 FD S7-8

Haltech
$780.00 - $780.00
$780.00
$780.00 - $780.00
$780.00

If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug 'n' Play Adapter Kits. These adapters plug direct...

View full details
$780.00 - $780.00
$780.00
$780.00 - $780.00
$780.00

Elite 2500 + Mazda RX7 FD3S-S7&8 Plug 'n' Play Adaptor Harness Kit

Haltech
$3,590.00 - $3,590.00
$3,590.00
$3,590.00 - $3,590.00
$3,590.00

ECU OVERVIEW Elite 2500 is a two-connector, stand-alone ECU ideal for popular late model performance and racing applications. Recommended for 4, 6,...

View full details
$3,590.00 - $3,590.00
$3,590.00
$3,590.00 - $3,590.00
$3,590.00

Elite 1500 + Mazda RX7 FD3S-S7&8 Plug 'n' Play Adaptor Harness Kit

Haltech
$2,885.00 - $2,885.00
$2,885.00
$2,885.00 - $2,885.00
$2,885.00

ECU OVERVIEW Elite 1500 is a two-connector, stand-alone ECU ideal for popular late model performance and racing applications. Recommended for 4vcyl...

View full details
$2,885.00 - $2,885.00
$2,885.00
$2,885.00 - $2,885.00
$2,885.00

Elite 1000-2500 Mazda RX7 FD3S-S7&8 Plug 'n' Play Adaptor Harness

Haltech
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug'n'Play Adaptor Kits. These adaptors plug directly...

View full details
$755.00 - $755.00
$755.00
$755.00 - $755.00
$755.00

Elite 1500 Mazda 13B S6-8 CAS with Flying Lead Ignition Terminated Harness

Haltech
$1,602.00 - $1,602.00
$1,602.00
$1,602.00 - $1,602.00
$1,602.00

The fastest and most cost effective way to wire your race car or engine conversion! Simply connect a handful of labelled wires and this plug and Pl...

View full details
$1,602.00 - $1,602.00
$1,602.00
$1,602.00 - $1,602.00
$1,602.00

Nexus S3 Plug 'n' Play Adapter Harness Kit - Mazda RX7 FD S7 & 8

Haltech
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

ECU OVERVIEW Haltech's Nexus S3 is the successor to the acclaimed Elite 2500, offering a serious upgrade in performance and functionality. The S3 c...

View full details
$3,955.00 - $3,955.00
$3,955.00
$3,955.00 - $3,955.00
$3,955.00

Frequently Asked Questions

What does upgrading engine management improve?
Depending on the product, upgrades in this category can improve tuning flexibility, ignition strength, throttle response, drivability or signal accuracy.
Do I need tuning after installing engine management?
Often, yes. Engine management, ignition and trigger-related changes usually work best when the ECU and calibration are checked at the same time.
Are these engine management plug-and-play?
Some are designed as direct replacements, while others may need additional wiring, setup or professional installation depending on the vehicle.
Are these engine management suitable for high performance builds?
Yes. These parts are commonly used when factory control systems become a limitation in modified or motorsport-focused applications.
How do I confirm compatibility with my setup?
Check connector style, ECU support, engine platform and any model-specific notes before ordering, especially on custom or swapped builds.