Everything You Need to Know About Installing RGB Tail Lights on Toyota Supra A90/A91

Look, the Supra A90/A91 doesn’t need help turning heads. It already looks like it came out of a video game. But if you’re like most car people, “stock” feels like a participation trophy. You want that extra. You want people at the light behind you to forget what planet they’re on. That’s where RGB tail lights come in. They’re not just lights. They’re pure flex.

I’ll never forget the first time I saw a Supra with RGB tails at a midnight meet. Everyone’s pretending to care about exhaust notes and dyno sheets, but no—half the crowd is hypnotized by a light show blasting off the back bumper. Stock tails suddenly feel like those sad little candles on a birthday cake.

Why Bother?

Because factory tails are boring, that’s why. They work, sure. They flash when you tell them to. Big deal. RGB lets you match your mood—or your ego. Night cruise with the squad? Keep it chill. Parking lot flex? Crank it up like Vegas on a Saturday night.

And let’s be honest, Supras don’t do “blend in.” They’re meant to make people stare. Regular tails don’t deliver that. RGB tails do. End of story.

What You’re Really Signing Up For

This is not a five-minute job. It’s not snapping in an iPhone charger. It’s clips, panels, wires, and a small pile of swear words. If you’ve never touched a wiring harness before, you’re about to meet one. Bring patience, tools, and maybe a buddy who owes you a favor.

Tools you’ll wish you had before you started:

• Ratchet set and screwdrivers
  
• Trim removal tool (save your fingernails)
  
• Electrical tape and zip ties (your new best friends)
  
• A multimeter, if you’re paranoid or just like to flex about “checking continuity”
  

Pro tip: do not, I repeat, do not buy the $99 eBay “RGB special.” I made that mistake once. My car ended up looking like a cheap Christmas tree, and the lights couldn’t stay in sync to save their lives.

The Brutal Truth About the Install

Forget the clean YouTube guides that make it look like Lego. Here’s what actually happens:

• Trunk liner comes out. Toyota apparently used a million clips, all designed to stab you.
  
• Harness disconnect. Be gentle or you’ll snap a clip and live a zip tie life.
  
• OEM lights slide out, heavier than you expect.
  
• New RGB ones go in. They’ll look sick right away, but you’re not done.
  
• Wiring. This is where you either follow the instructions like scripture or blow a fuse and spend the next hour wondering why your blinker is dead.
  
• Test everything. Twice. Do not reassemble the trunk only to realize your left brake light doesn’t work. Ask me how I know.
  

The Stuff Nobody Warns You About

• Error codes are common. They’re fixable, but they’ll freak you out the first time.
  
• Water and wiring are enemies. Seal everything like you’re prepping a submarine.
  
• RGB is stupidly addictive. You’ll find yourself sitting in your driveway cycling through colors just because you can.
  

Worth It?

Yes. One hundred percent yes. Supras deserve mods that match their reputation, and RGB tails do exactly that. It’s not a “need,” but it’s definitely a “hell yes, I want it.”

One Last Word of Advice

Skip the cheap junk. If you’re serious, look at something like the Toyota A90/A91 Supra Tail Lights with Carbon Fiber Housing. They give you the RGB magic and that carbon finish that screams quality. The difference is night and day.

So yeah—grab a decent kit, block off a Saturday, and get ready to bleed a little. Because the first time you see those lights bouncing colors off a parking lot wall at midnight, you’ll know every busted knuckle and every curse word was worth it.