AMP EFI

MaxSpark LS IGN1A Wiring Harness Kit

$249.99

SKU: HRN-IGN-LS-Harness-Kit

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

This harness kit features plug-and-play convenience, connecting directly to your factory LS engine harness and IGN1A smart coils, requiring no splicing. It ensures full voltage and current delivery for reliable coil performance with dedicated power and ground routing. The setup is simplified with only three user connections needed: main battery power, chassis/engine grounds, and switched 12V ignition power to the relay. This kit is designed for use with the MaxSpark PNP LS – IGN1A Smart Coil Ignition Kit and is compatible with all standard GM LS engines. However, it is important to note that this harness kit is not compatible with LSA and LS9 engines due to their integrated ignition/fuel harnesses with non-standard connectors and mounting methods. Use on LSA/LS9 engines would require custom integration.

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

BrandAMP EFI
Part NumberHRN-IGN-LS-Harness-Kit
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

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.

View Full Shipping Policy