Ignitions and Electrical› Computers, Chips, Modules and Programmers

Haltech

Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit

$2,730.00

SKU: HT-213304

In Stock
In Stock
Ships by Nov 10
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit is designed to seamlessly integrate the advanced Nexus S3 ECU with your Nissan Silvia S14 S1 ZENKI. This kit simplifies the process of upgrading your factory ECU by providing a direct connection between the Haltech ECU and your vehicle's original wiring harness. It allows for a straightforward installation, enabling you to get your vehicle up and running with enhanced engine management capabilities in just a few hours.
Show original supplier description
The Haltech Nexus S3 Plug 'n' Play Adapter Harness Kit is designed to seamlessly integrate the advanced Nexus S3 ECU with your Nissan Silvia S14 S1 ZENKI. This kit simplifies the process of upgrading your factory ECU by providing a direct connection between the Haltech ECU and your vehicle's original wiring harness. It allows for a straightforward installation, enabling you to get your vehicle up and running with enhanced engine management capabilities in just a few hours.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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-213304
CategoryIgnitions and Electrical

Videos

🛠 S2 & S3 Features Explained | PRODUCT OVERVIEWS

🛠 S2 & S3 Features Explained | PRODUCT OVERVIEWS
Haltech Elite Ultimate DIY Install Guide

Haltech Elite Ultimate DIY Install Guide
🛠 ECU Wiring Methods Explained | TECH TUESDAY

🛠 ECU Wiring Methods Explained | TECH TUESDAY
🔍 uC-10 Product Overview - 10 Inch Digital Dash | PRODUCT OVERVIEWS

🔍 uC-10 Product Overview - 10 Inch Digital Dash | PRODUCT OVERVIEWS

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

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.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy