HID Projector Retrofit Kit Components Guide

When you order a complete HID bi-xenon projector retrofit kit, that box arrives packed with more parts than a lot of first-time builders expect. We shot this walkthrough on the bench so we could physically pull every piece out and explain exactly what it does before you ever open your headlights. Understanding these HID projector […]

HID Projector Retrofit: Mounting & Alignment Tips

Two-part gum epoxy applied to secure the projector to the reflector

Retrofitting projectors into a stock housing is one of the most rewarding lighting upgrades you can tackle in your own garage, but it lives or dies by one thing: alignment. We have done enough of these builds to know that if you skip the prep work, you will chase a crooked cutoff and uneven output […]

Morimoto Elite HID System: Range Rover Evoque Install Guide

Upgrading the halogen projector headlights on a modern SUV is one of the most satisfying lighting jobs we do here at the shop, and today we tackled a brand new Range Rover Evoque with the Morimoto Elite HID System. This kit takes a factory halogen projector and gives it a clean, pure white output without […]

C6 Corvette LED Headlights: Morimoto XB vs Cheap Knockoffs Compared

Morimoto XB LED headlight for C6 Corvette with illuminated DRL bar and projector

If you own a 2005-2013 Corvette, chances are your headlights are not performing like they did when the car was new. Upgrading to C6 Corvette LED headlights is one of the most impactful modifications you can make. However, the aftermarket is flooded with options at wildly different price points. Are the budget headlights a smart […]

LED Halos and Strips: The Complete Guide to Switchback and RGB

LED halos multicolor rgb with controllers

 If you want to take your custom headlight build to the next level, LED halos and strips are the way to do it. Whether you are after a clean switchback daytime running light or a full color-changing RGB setup, the options from Profile Performance are in a class of their own. Here at The […]

Best Bi-LED Projectors for Retrofitting: Head-to-Head Comparison

LED projector comparison lineup at The Retrofit Source

When it comes to upgrading your headlights, choosing the right bi-LED projector for retrofitting can feel overwhelming. The market has exploded with options over the past few years, and not all of them deliver on their promises. We got our hands on every major LED projector available, mounted them side by side on a beam […]

What’s Better: HID or LED D2S Bulbs? (2026 Comparison Guide)

D2S HID bulb comparison lineup featuring Osram, Philips, and Morimoto options at The Retrofit Source

When comparing HID vs LED D2S bulbs, the answer is not as straightforward as most people think. If your vehicle uses D2S HID headlights, you have probably asked yourself whether it is worth upgrading to LED replacements. On paper, LED sounds like the obvious winner. Newer technology, higher efficiency, and bold claims about brightness. But […]

Best LED Headlight Bulbs: Performance, Optics, and Real-World Results (2026 Guide)

Best LED Headlight Bulbs

LED headlight bulbs have become one of the most common upgrades in modern automotive lighting. They promise increased brightness, improved efficiency, and a cleaner, whiter light output compared to traditional halogen systems. However, upgrading to LED is not as simple as swapping one bulb for another. From an engineering standpoint, LED headlight retrofits introduce a […]

2018+ Ford F-150 Morimoto XB LED Headlights: Complete Install Guide and Review

2019 Ford F-150 with Morimoto XB LED headlights installed

If you own a 2018, 2019, or 2020 Ford F-150, you already know the stock headlights leave something to be desired. Fortunately, upgrading to the Morimoto XB LED headlights is one of the best visual and functional upgrades you can make. In fact, the entire installation is plug and play, meaning no cutting or splicing […]

Morimoto XB vs. XB Evo: Should You Upgrade Your Headlights?

If you’ve been running the original Morimoto XB headlights on your truck or car, you already know how much of an improvement they were over stock. They delivered a clean beam pattern, solid brightness, and a modern look that turned heads. So when Morimoto launched the XB Evo lineup, the natural question was whether the […]