Exterior Components Lights and Components

Underground Lighting

HID Headlight Replacement Kit

$199.99

SKU: H11-GC-6K

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Underground Lighting H11-GC-6K is a HID headlight replacement kit designed to upgrade your vehicle's halogen bulbs. This kit offers a brighter light output and is available in various colors, including cool pure white.

Installation involves making a 7/8 inch hole in the dust cover for the ballast wires, using the provided grommet. It's recommended to turn off the Daytime Running Light (DRL) setting as HIDs require 12v power, while DRLs operate at 9v, which can damage the ballast.
Show original supplier description
The Underground Lighting H11-GC-6K is a HID upgrade kit designed to replace your vehicle's standard halogen headlight bulbs, providing a significant improvement in light quality and output. This kit features high-end Canbus ballasts that are error-free and flicker-free, ensuring seamless integration with your vehicle's electrical system. The bulbs are available in multiple colors, including cool pure white, whitish blue, blue, and yellow, allowing you to customize your vehicle's appearance. Installation requires creating a 7/8 inch hole in the dust cover to accommodate the ballast wires, with an included grommet for a secure seal. It is also recommended to disable the Daytime Running Light (DRL) setting in your vehicle's navigation system. This is because HIDs require a stable 12v power source for optimal performance and longevity, whereas DRLs operate at a lower 9v, which can lead to premature ballast failure. Underground Lighting emphasizes the quality of their 35W HID kits, stating they provide true 35W output, unlike competitors who may claim 35W but deliver less. They also caution against 55W kits, citing that they offer minimal brightness gains over true 35W while generating excessive heat that can stress wiring harnesses and potentially cause damage. A specific note for 2015 models indicates that a relay kit is required, with a provided link to the appropriate H11 relay harness. The kit is backed by a 1-year warranty. The product is designed to work with 12V circuits and is specified for headlight applications.

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

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Specifications

BrandUnderground Lighting
Part NumberH11-GC-6K
CategoryExterior Components

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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.

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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.

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