






Engine management
No wiring needed
ECU plus harness
Nexus S3 Plug 'n' Play Adapter Harness Kit - Mazda MX5 NB / Turbo (HT-213303)
SKU: HT-213303
Engine management
No wiring needed
ECU plus harness
ECUs always ship FREE with Tuned By Shawn!
Manufacturer Limited Warranty

Nexus S3 Plug 'n' Play Adapter Harness Kit - Mazda MX5 NB / Turbo (HT-213303)
Product details
Description
Nexus S3 Plug 'n' Play Adapter Harness Kit - Mazda MX5 NB/Turbo. Genuine Haltech hardware, built to integrate with the rest of the system.
Why It Matters
Correct pinouts the first time, labelled circuits that make diagnosis simple, and factory-grade terminations with no splices to suspect later. Wiring is where builds stall, and purpose-built harnesses are how they don't.
Upgrade your Mazda MX5 NB/Turbo with Haltech's Nexus S3 ECU and new features for improved performance. Simply plug in the Haltech Plug 'n' Play Adapter Harness Kit for an easy upgrade from the factory harness.
The Details
- SKU: HT-213303
Applications
Unsure whether this suits your ECU or build? Send us the details before ordering and we will confirm compatibility.
As a Platinum Haltech Dealer, Tuned By Shawn can confirm fitment for your exact setup before you order, and remote tuning over live Zoom is available once everything is installed.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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